IBM System Storage™ DS Storage Manager version 10.77.x5.16 for AIX. Note: AIX host attachment to the IBM 1722-all models (DS4300), 1724-all models (DS4100), 1742-models 90U/90X (DS4500), 1814-all models (DS3950, DS4200, DS4700 and DS5020), 1815-all models (DS4800) and 1818-all models (DCS3700, DS5300 and DS5100) requires additional purchase of an IBM AIX Host Kit Option. The IBM AIX Host Kit options contain the required IBM licensing to attach an AIX Host System to the DS3950, DS4100, DS4200, DS4300, DS4500, DS4700, DS4800, DS5020, DS5100 or DS5300. Please contact your IBM service representative or IBM resellers for purchasing information. Important: A problem causing recursive reboots exists while using 7.36.08 and 7.36.12 firmware on IBM System Storage DS4000 or DS5000 systems. This problem is fixed in 7.36.14.xx and above firmware. All subsystems currently using 7.36.08 and 7.36.12 firmware MUST run a file system check tool (DbFix) before and after the firmware upgrade to 7.36.14.xx or higher. Instructions for obtaining and using DbFix are contained in the 7.36.14.xx or higher firmware package. Carefully read the firmware readme and the DbFix instructions before upgrading to firmware 7.36.14.xx or higher. For subsystems with firmware level 7.36.08 or 7.36.12, configuration changes should be avoided until a firmware upgrade to 7.36.14.xx or higher has been completed successfully. Subsystems not currently using 7.36.08 or 7.36.12 do not need to run DbFix prior to upgrading to 7.36.14.xx or higher. DbFix may be run after upgrading to 7.36.14.xx or higher, but it is not required. DbFix is only applicable to subsystems using 7.36.xx.xx or greater firmware. If problems are experienced using DbFix or the resulting message received is “Check Failed…”, DO NOT upgrade your firmware and contact IBM support before taking any further actions. (C) Copyright International Business Machines Corporation 1999, 2011. All rights reserved. US Government Users Restricted Rights - Use, duplication, or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Note: Before using this information and the product it supports, read the general information in section 6.0 "Trademarks and Notices” in this document. Last Update: 05/24/2011 IMPORTANT: This storage manager software package contains non-IBM code (Open Source code.) Please review and agree to the Non-IBM Licenses and Notices terms stated in the DS_Storage_Manager_Non_IBM_Licenses_and_Notices_v2.pdf file before use. Refer to the IBM System Storage™ Support Web Site or CD for the IBM System Storage DS Storage Manager version 10 Installation and Host Support Guide. This guide along with the Storage Manager program Online Help provide the installation and support information. This guide also provides information on other DS4000 related publications. Please refer to corresponding Change History document for more information on new features and modifications. ============================================================================== CONTENTS -------- 1.0 Overview 2.0 Installation and Setup Instructions 3.0 Configuration Information and Usage Notes - AIX Platforms 4.0 Unattended Mode 5.0 Web Sites and Support Phone Number 6.0 Trademarks and Notices 7.0 Disclaimer ============================================================================== 1.0 Overview ------------ 1.1 Overview ------------ The 10.77 version of the IBM DS Storage Manager host software for AIX is required for managing all DS3000, DS4000, and DS5000 storage models with controller firmware version 07.77.xx.xx. In addition, it is also recommended for managing models with controller firmware version 6.xx.xx.xx or higher installed. Important: Please refer to the "IBM System Storage DS Storage Manager version 10 Installation and Host Support Guide" located at http://www.ibm.com/support/ for all installation and support notes pertaining to AIX. Notes: 1. The IBM Storage Manager host software version 10.77 new features and changes are described in the corresponding Change History document. Please refer to this document for more information on new features and modifications. 2. The latest version of the IBM System Storage DS Storage Manager Version 10 Installation and Host Support Guide is also available on IBM's Support web site as a downloadable Portable Document format (PDF) file. 3. Please refer to the IBM System Storage Interoperation Center located at http://www-03.ibm.com/systems/support/storage/config/ssic for information pertaining to supported AIX kernels, HBAs, and multipath drivers that are supported. Products Supported ----------------------------------------------------------------- | New Model | Old Model | Machine Type | Model | |----------- |-----------|--------------|-------------------------| | DS5300 | N/A | 1818 | 53A | |----------- |-----------|--------------|-------------------------| | DS5100 | N/A | 1818 | 51A | |----------- |-----------|--------------|-------------------------| | DS5020 | N/A | 1814 | 20A | |----------- |-----------|--------------|-------------------------| | DS4800 | N/A | 1815 | 82A, 82H, 84A, 84H, | | | | | 88A, 88H, 80A, 80H | |----------- |-----------|--------------|-------------------------| | DS4700 | N/A | 1814 | 70A, 70H, 72A, 72H, | | | | | 70T, 70S, 72T, 72S, | |----------- |-----------|--------------|-------------------------| | DS4500 | FAStT 900 | 1742 | 90X, 90U | |----------- |-----------|--------------|-------------------------| | DS4400 | FAStT 700 | 1742 | 1RX, 1RU | |----------- |-----------|--------------|-------------------------| | DS4300 | FAStT 600 | 1722 | 60X, 60U, 60J, 60K | | | | | 60L | |----------- |-----------|--------------|-------------------------| | DS4200 | N/A | 1814 | 7VA, 7VH | |----------- |-----------|--------------|-------------------------| | DS4100 | FAStT 100 | 1724 | 100, 1SC | |----------- |-----------|--------------|-------------------------| | DS3950 | N/A | 1814 | 94H, 98H, | |------------|-----------|--------------|-------------------------| | DCS3700 | N/A | 1818 | 80C | |----------- |-----------|--------------|-------------------------| | DS3500 | N/A | 1746 | C2A, A2S, A2D, C4A, | | | | | A4S, A4D | |----------- |-----------|--------------|-------------------------| | DS3200 | N/A | 1726 | 21X, 22X, 22T, HC2, HC6 | |----------- |-----------|--------------|-------------------------| | DS3300 | N/A | 1726 | 31X, 32X, 32T, HC3, HC7 | |----------- |-----------|--------------|-------------------------| | DS3400 | N/A | 1726 | 41X, 42X, 42T, HC4, HC8 | |----------- |-----------|--------------|-------------------------| | Boot DS | N/A | 1726 | 22B, HC3 | ----------------------------------------------------------------- ATTENTION: 1. AIX does not support host I/O with the single controller version of the DS4300 (DS4300 SCU) subsystem. The DS4300 SCU must be upgraded to standard (dual-controller) model or Turbo (dual controller) option model for AIX host attachment support. 2. For the DS4400 and the DS4100 storage subsystems - all models (Standard /dual controller and Single Controller), the controller firmware version 06.12.xx.xx and later must be used. 3. The DS4300 with Single Controller option(M/T 1722-6LU,6LX,and 6LJ), FAStT200 (M/T 3542-all models) and FAStT500 (M/T 3552-all models) storage subsystems can no longer be managed by DS Storage Manager version 10.50.xx.23 and higher. 4. For the DS3x00 storage subsystems, please refer to the readme files that are posted in the IBM DS3000 System Storage support web site for the latest information about their usage, limitations or configurations. http://www.ibm.com/systems/support/storage/disk ======================================================================= 1.2 Limitations (not all are AIX limitations, but DS Storage Manager limitations as well) ----------------------------------------------------------- IMPORTANT: The listed limitations are cumulative. However, they are listed by DS storage subsystem controller firmware and Storage Manager host software releases to indicate which controller firmware and Storage Manager host software release that they were first seen and documented. New limitations with Storage Manager version 10.77.xx.16 release (controller firmware 07.77.xx.xx). 1. When you switch between the Search tab and the TOC tab, the topic that was open in the Search tab is still open in the TOC tab. Any search terms that were highlighted in the Search tab are still highlighted in the TOC tab. This always happens when you switch between the Search tab and the TOC tab. Workaround: Select another topic in the TOC to remove all search term highlighting from all the topics. 2. Support tab in the AMW kept open for longer duration will result in display of unevenly spaced horizontal marks. If the storage Manager is kept open for long durations a few grey lines may be seen on the Support Tab after restoring the AMW. Re-launching the AMW eliminates this problem. 3. Kernel panic while loading RedHat 6.0 on Power PC installation. When trying to load the RHEL6 PPC installation to the system that has existing old OS(LPAR), the system panics. Workaround: For a rack system withan HMC, delete the LPAR and recreate a new one for the installation to work. For a rack system without an HMC and the Power Blade system, the user needs to go to Open Firmware Prompt and type in “dev nvram” and “wipe- nvram”. The system will reboot afterward and need to process normal RHEL6 installation. 4. Node unfencing can fail during RHCS startup when automatically generated host keys are used. The cluster manager service (cman) will fail to start, and the user will see the error message “key cannot be zero” in the host log. A user is somewhat likely to hit the issue if the cluster.conf file uses does not have host keys defined manually. If the user forgoes use of SCSI reservation fencing altogether, and relies only on power fencing, they will not experience this issue. Bugzilla 653504 was submitted to RedHat for this issue. 5. RHCS services with GFS2 mounts cannot transfer between nodes when client mounts with NFSv4. When attempting to transfer a cluster service manually, while a client was connected using NFS version 4, the GFS2 mount points failed to unmount. This caused the service to go to the “failed” state. The mount point, along with any other mount points exported from the same virtual IP address, will become inaccessible. Not likely to happen if the user configures the cluster nodes not to allow mount requests from NFS version 4 clients. Red Hat Bugzilla #654333 was opened to discover the root cause and fix the problem 6. The storage subsystem configuration script contains the logical drive creation commands with incorrect T10PI parameter. The workaround is to manually edit the file to change instances of dataAssurance parameters to T10PI. 7. The DS3500 subsysem does not support External Key Management at this time. Please contact IBM resellers or represeantives for such support in the future. New limitations with Storage Manager version 10.70.xx.25 release (controller firmware 07.70.xx.xx). 1. Kernel Panic reported on Linux SLES10 SP3 during controller failover. Probability of this issue happening in the field is low. Workaround: Avoid placing controllers online/offline frequently. Novell was informed about this issue. Opened Novell Bugzilla NVBZ589196. 2. CHECK CONDITION b/4e/0 returned during ESM download on DS5000 The interposer running LP1160 firmware is reporting an Overlapped Command (0B/4E/00) for a Read Command containing an OXID that was very recently used for a previous read command on the same loop to the same ALPA. In almost all cases, this command will be re-driven successfully by the controller. Impact should be negligible. Workaround: Can be avoided by halting Volume I/O prior to downloading ESM firmware. 3. If a host sees RAID volumes from the same RAID module that are discovered through different interface protocols (fibre/SAS/iSCSI) failovers will not occur properly and hosts IOs will error out. If the user does not map volumes to a host that can be seen through different host interfaces this problem will not occur. Workaround: Place controller online and reboot the server to see all volumes again. 4. Linux guest OS reported I/O error during Controller Firmware Upgrade on ESX4.1 with Qlogic HBA. The user will see I/O errors during controller activation from the guest OS due to mapped devices becoming inaccessible and offline. Workaround: This issue occurs on various Linux guest OSes, so to avoid the issue the user should perform an offline (no I/O to controllers) controller firmware upgrade. 5. I/O Error on Linux RH 4.8 after rebooting controller on DS3500 iSCSI. The devices will be disconnected from the host until the iSCSI sessions are re-established. workaround: Restart the iSCSI service. Configure the iSCSI service to start automatically on boot. 6. CFW Upgrade on 4.1 w/SLES 11 fails with IO error on SLES 11 Guest partition. This issue occurred if there is filesystem volume in SLES11 VM. User will see I/O errors and Filesystem volumes in SLES11 VMs will be changed to read-only mode. Workaround: User can perform controller FW upgrade with either no I/O running on SLES11 VM or no Filesystem created in SLES11 VMs. 7. "gnome-main-menu" crashes unexpectedly while install HSW on Suse 10. The crashes appear to happen randomly with other applications as well.  After the crash the menu reloads automatically.  Dismiss the prompt and the host will reload the application.  This problem appears to be a vendor issue. 8. I/O errors on RHEL 4.8 guests on VMware 4.1 during controller reset. VMware has suggested VMware 4.1 P01 may resolve this issue. No support was issued for RHEL 4.8 guests under VMware 4.1 over SAS. Workaround: Use RHEL 5.5. 9. VMWare guest OS not accessible on iSCSI DS3524 (VMware SR 1544798051, VMware PR 582256). VMware has suggested VMware 4.1 P01 may resolve this issue. Workaround: Use Fibre Channel or SAS connectivity. 10. When DMMP is running in a BladeCenter SAS environment, I/O errors occur during failover and controller firmware operations. Support for Device Mapper and SLES 11.1 SAS has been restricted and will not be published. Workaround: Install RDAC. 11. SLES11.1ppc SAN boot fails on PS700 with 10 Gb Qlogic ethernet to DS3512. After configuration and install of Linux on a LUN using software iSCSI, the JS blade will not boot into the OS. Workaround: Use local boot, SAS or Fibre Channel. 12. ‘No response’ messages from Device Mapper devices with volumes on non-preferred path. Any I/O operations against volumes mapped to failed devices will timeout or hang. Workaround: This problem requires the host to be rebooted in order to restart I/O successfully. Update SLES11.1 to maintenance update 20101008 containing kernel version 2.6.32.23-0.3.1. Note that this kernel version has not been fully certified by LSI and should only be used if this issue is encountered. Bugzilla #650593 contains issue details and fix provided by Novell. 13. LifeKeeper 7.2.0 recovery kits require multiple host ports to use SCSI reservations. Workaround: Use two single port SAS HBAs. In this case each port will be represented as a host, and LifeKeeper will identify both separately. Another way to avoid the issue is to use MPP as the failover driver. 14. Unexpected "jexec" messages during mpp installation/un-installation on SLES 11.1. Workaround: None - https://bugzilla.novell.com/show_bug.cgi?id=651156 15. I/O write errors on mounted LifeKeeper volumes before node resources transfers to another node. recovery: I/O can be restarted as soon as node resources are transferred to another node in the cluster. Workaround: None. 16. Solaris 10u8 guest OS disks become inaccessible on ESX35u5 during sysReboot on array controller. This can be avoided by not using raw device mappings and instead using virtual disks. If raw device mappings are required, they must be used with virtual compatability mode selected when adding the disks to the guest OS. Workaround: None. 17. Solaris 10u8 guest OSes reported I/O error during Controller Firmware Upgrade on ESX35U5 with Qlogic HBA. Permanent restriction. Workaround: Perform upgrade with no I/O. 18. Solaris guest OS reported I/O error during Controller reset on ESX35U5. The only recovery method is to rebooting the failed VM host. Permanent restriction. New limitations with Storage Manager version 10.70.xx.10 release (controller firmware 07.70.xx.xx). 1. Storage Manager “Error 1000 - Could not communicate with the storage...." can occur when actions such as clearing the configuration on a large system (i.e. 448 drives with a DS5300). The Storage Manager has a 120 second timeout and retries 2 more times when retrieving status. Some actions such as this may take 8 minutes or longer. 2. Array Management Window shows 2048 volume copies allowed when only 2047 maximum volume copies can be created. For a given array, at least one source volume will be present for the volume copy feature; hence, the actual number of “copy relationships” is one less than the maximum volume allowed. 3. FDE Drive in “Security Locked” state is reported as “incompatible” state in the drive profile. The drive can be recovered by importing the correct lock key. 4. Deselecting product components using keyboard when installing Storage Manager still installs them. You will have to use mouse for individual component selection. New limitations with Storage Manager version 10.60.xx.17 release (controller firmware 07.60.xx.xx). 1. This version of the Storage Manager installation package includes the IBM Storage Manager Profiler. This is also referred to as Support Monitor in some of the IBM publications. The following system restrictions apply: Note: Do not use laptops or I/O-attached hosts for installing the IBM Storage Manager Profiler unless these items fulfill all of the following requirements. 1. Minimum 1GB memory, 1.5 GB preferred 2. Minimum 1GB hard drive space, 1.5 GB preferred 3. On average 15 to 20 minutes installation duration 4. Static IP address required 5. The Storage Manager Profiler is installed by default with the IBM DS Storage Manager Install Anywhere (SMIA) package with the Typical (Full Installation) selection. To not install the Storage Manager Profiler, select Custom then deselect Support Monitor. 6. A pre-existing MySQL database on the host must be manually uninstalled before you can install the Storage Manager Profiler. 7. The Storage Manager Profiler installation includes the Apache Tomcat webserver application. Any other pre-existing applications that use Apache Tomcat must be uninstalled before you install the Storage Manager Profiler. 8. Make sure the Storage Manager Profiler directory structure is removed from antivirus and backup applications. 9. MS Internet Explorer and Mozilla Firefox are the only two Web browsers supported with the Storage Manager Profiler client application. 10. By default, the Storage Manager Profiler polls all storage subsystems for storage subsystem support data every day at 2:00am. Ensure that there is not heavy usage of the storage subsystem during this time period. This collection time schedule can be modified to start during the window that the storage subsystem has light usage by pointing your Web browser at http://localhost:9000/ and click on the Calendar icon to schedule the data collection frequencies and time. 11. The Storage Manager Profiler typically takes five minutes to seven minutes to collect data, but the time can increase for larger configurations. There have been exceptional instances where storage arrays took up to 20 minutes to capture the data when capturing the drive information. 12. If you have a large system, gathering support data takes longer, and the compressed files are larger. The Storage Manager Profiler compresses the collection data file to be between 2 MB and 5 MB. 13. Monitor each storage subsystem from one Storage Manager Profiler instance. Gathering data from a storage subsystem with multiple Storage Manager Profiler instances can cause problems. No mechanisms exist that prevent multiple Storage Manager Profiler instances from trying to find data from the same storage subsystem. 14. When multiple Storage Manager instances are installed in the environment, do not define the same storage subsystem twice in the Storage Manager Enterprise Management window. 15. The data collection process of the Storage Manager Profiler is multi- threaded with a polling mechanism in place to find the maximum number of storage subsystems at pre-defined timing intervals. The polling mechanism is not sequential. For example, if the upper limit on the number of storage subsystems from which the Storage Manager Profiler can find data is 20, and 60 storage subsystems are defined, 20 threads are gathered immediately, while the data from the remaining 40 storage subsystems are gathered as resources became available. The Storage Manager Profiler supports at least 10 storage subsystems. 16. The Storage Manager Profiler does not support in-band management of storage subsystems. 17. The only function that the Storage Manager Profiler supports is the Support Monitor. 18. A minimum of 06.19.xx.xx controller firmware is required to use the Storage Manager Profiler. 2. The online help of the Command Line Interface commands (SMcli commands) incorrectly showed the parameters of certain SMcli commands. The parameters that were shown incorrectly belong to the "disk" type parameter such as Drive, Drivechannels, DiskDrives, repositoryDrives ... These parameters were incorrectly shown with the additional word "disk" such as diskDrive, DiskDriveChannels, repositoryDiskDrive ... The SMcli command syntax checking engine will display the correct syntax for these parameters. Make the modifications as suggested by the SMcli command syntax checking engine. One can also refer to the pdf copy of the Command Line Interface and Script Commands Programming Guide - IBM System Storage DS4200, DS4700, and DS5000 in the IBM DS support web site for help on the SMcli command syntax. 3. The suggested recovery path in the mis-wired guru event might send the user down either the wrong path or very long path when trying to fix the first mis-wired port. The work-around is to use the cabling diagram in the EXP5060 Installation, User's and Maintenance guide or the DS5100 and DS5300 Installation, User's and Maintenance guide publications to fix the cabling mis-wired error. The pdf version of these pubs are available in the IBM DS support web site. New limitations with Storage Manager version 10.60.xx.11 release (controller firmware 07.60.xx.xx). 1. If port 1 of the iSCSI host interface is disconnected when the iSCSI configuration window is first opened, the status of port 1 shows as connected. If you switch to port 2 and back to port 1, the status will refresh and port 1 will show as disconnected. 2. When modifying the iSCSI host port attributes there can be a delay of up to 3 minutes if the port is inactive. If possible, connect a cable between the iSCSI host port and a switch prior to configuring any parameters. 3. When applying the Premium feature keys to enable the 64 or 112 drive attachment to the DS5020 subsystem, the "drive slot limit" premium feature entry in the Premium Features and Feature Pack Information window will not be updated to reflect the maximum number of drives that can be attached to the subsystem (either 64 or 112). In addition, when trying to attach more drives than the DS5020 is currently allowed, the "drive slot limit" premium feature entry in the Premium Features and Feature Pack Information window will be displayed with the "out of compliance status". To view the maximum number of drives that can be attached to a DS5020, obtain the Storage Subsystem profile and search for the following info. Drive Limit Management: Number of drive slots discovered: 32 Number of drive slots allowed: 112 Note: The controllers use the discovered drive slot in the subsystem configuration number to determine whether the maximum number of drives limit is exceed or not instead of the actual number of drives installed. For example, if there are two drive expansion enclosures attached to the DS5020, the number of discovered drive slot will be 42 which is exceeding the limit of 32 that the DS5020 supported as standard feature even the total number of installed drives actually installed in the subsystem is 32 or less. In this case, the drive slot limit will be shown with the status Out-of-Compliance until the DS5020 33-64 drive attach premium feature key is applied. (XB014946) 4. The Configure iSCSI host port window always displayed the iSCSI host port number with respect to the installed iSCSI port in the subsystem only. It does not take into account of other types of host port installed in the subsystem. Its port counting starts with the first discovered iSCSI port in the subsystem instead of the first host port installed in the subsystem per controller host port scanning order. For example, the DS5020 controller with iSCSI port option will have the port labeled as ports 1 and 2 per controller in the Configure iSCSI host port window instead of as ports 3 and 4 because there are two FC ports installed in the controller boards. However, the MEL entries will refer to the iSCSI posts as ports 3 and 4 instead of as ports 1 and 2 as referred to in the Configure iSCSI host port window. Similarly, in the DS5100 and DS5300 subsystems, the iSCSI host porta in HIC slot 2 will be referred to as ports 1 and 2 in the Configure iSCSI host port window and ports 5 and 6 in the MEL if the FC host card is installed in HIC slot 1. (XB014900) 5. The Premium Feature activation confirmation window for Drive Security (FDE) feature activation key will show the feature as "Unknown capacity". Click Ok to confirm that you want to go ahead with the enablement of the Drive Security (FDE) feature. 6. When doing a Refresh DHCP operation in the Configure iSCSI port window, and the iSCSI port is unable to contact the DHCP server, the following inconsistent informational Mel events can be reported; - MEL 1810 DHCP failure - MEL 1807 IP address failure - MEL 1811 DHCP success. For this error to occur, the following specific conditions and sequence must have been met: - Before enabling DHCP, static addressing was used on the port and that static address is still valid on the network. - The port was able to contact the DCHP server and acquire an address. - Contact with the DHCP server is lost. - The user performs the Refresh DHCP operation from DS Storage Manager Client. - Contact with the DHCP server does not come back during the DHCP refresh operation and timeouts. Check the network connection to your iSCSI port and the status of the DHCP server before attempting the Refresh DHCP operation again. New limitations with Storage Manager version 10.60.xx.05 release (controller firmware 07.60.xx.xx). 1. AIX does not support host attach to iSCSI storage subsystem. 2. When the port is swapped on the controller, it results in a WWN change. AIX FC HBAs do not support this name change and consider this an error. If a path is lost during port swap, the customer has to manually delete the associated paths and rescan. 3. The TPC server does not restart its TIP service after a reboot on a AIX host. The Storage Manager Client program Launch in Context code depends on the TIP service. The TPC install guide includes instructions explaining how to start TPC services on AIX. New limitations with Storage Manager Upgrade Utility package version 10.50.xx.23 release (controller firmware 07.50.xx.xx). 1. The Storage Manager client will not display the encryption capable drives correctly whenever the user tries to download NVSRAM. This issue can be resolved by manually resizing the window. 2. The Storage Manager on-line help contains inaccurate information about locking Encryption Capable drives. The current on-line help states "Use this command to set the new security key to lock all of the Encryption capable drives." The on-line help text should state " Use this command to set the security key that is used throughout the storage subsystem to implement the Disk Encryption premium feature. When any security-capable drive in the storage subsystem is assigned to a secured array, that drive will be security-enabled using the security key." 3. The Storage Manager Re-key operations can fail when there are Encryption Capable drives present in the system that are spun down. When drives are marked for export in a storage subsystem the drives are spun down. Attempting to generate a lock key with spun down drives will fail. Remove the exported drives from the subsystem and retry the operation. 4. When using the SMcli to create an Encryption drive security key, the SMcli command will not save the security key in a default location and a separate location at the same time. The new security key is saved in the location the SMcli was executed from if the command does not include a file location with a fully qualified path. 5. The Storage Manager Controller Firmware upgrade status message can be misleading. The Storage Manager Controller Firmware upgrade screen will report a controller is running an unsupported firmware version if the subsystem is unresponsive at the time of the upgrade. New limitations with Storage Manager Upgrade Utility package version 10.50.xx.19 release (controller firmware 07.50.xx.xx). 1. The DS Storage Manager version 10.50.xx.19 will not manage DS4000 Storage Subsystems with Controller firmware levels prior to v5.40.xx.xx. 2. Start of day (a controller reboot) can take a very long time, up to 20 minutes, after a subsystem clear configuration on a DS5000 subsystem. This occurs on very large configurations, now that the DS5000 can support up to 448 drives, and can be exacerbated if there are SATA drives. 3. Veritas cluster server node failure when fast fail is enabled. Recommend setting dmp_fast_fail HBA flag to OFF. Frequency of this causing a node failure is low unless the storage subsystem is experiencing repeated controller failover conditions. 4. At times the link is not restored when inserting a drive side cable into a DS5000 controller, a data rate mismatch occurs. Try reseating the cable again to clear the condition. 5. Due to a timing issue with controller firmware, using SMcli or the script engine to create LUNs and set LUN attributes will sometimes end with a script error. 6. Mapping host port identifiers to host via Script Editor hangs; fails via CLI with "... error code 1”. This will occur when using the CLI/script engine to create an initial host port mapping. 7. Under certain high stress conditions controller firmware upgrade will fail when volumes do not get transferred to the alternate controller quick enough. Upgrade controller firmware during maintenance windows or under low stress IO conditions. 8. Direct attach with 8G FC HBAs is not supported with AIX. You must use a switch between the host and the storage. 9. The AIX installation packages do not support the "PREVIEW" option. 10. If you are running AIX 5.3, utilizing fcp_array and SAN boot, do not switch to using MPIO until a fix has been identified and posted on the fix central website. New limitations with Storage Manager Upgrade Utility package version 10.36.xx.13 release (controller firmware 07.36.xx.xx). 1. The AIX installation packages do not support the "PREVIEW" option. New limitations with Storage Manager Upgrade Utility package version 10.36.xx.07b release (controller firmware 07.36.xx.xx). 1. Upgrade of DS4000 to 7.xx.xx.xx using the upgrade tool with non-English OSes will end with an error. The current firmware column still shows the previous version, pending version will show 7.xx.xx.xx, instead of 'none'. Checking the upgrade tool log you will find: [12.11.2008 08:51:16] [rey-ds4700-1] [SUPPORT_SERVICES] [DownloadAndActivate] activation failed There are two ways to check the content of this log: 1. As long as the upgrade tool is still open: Use the 'View log' button 2. If the upgrade tool was closed already: For windows all logs can be found in this folder: C:\Program Files\IBM_DS4000FirmwareUpgrade\client For other operating systems, check in the appropriate folder. Syntax of the name is similar to 20081114_1501.log. Then check the profile. Here the new firmware can be found as pending: Current configuration: Firmware version: 06.60.17.00 NVSRAM version: N1814D470R916V17.dlp Pending configuration: Staged firmware download supported: Yes Firmware version: 07.36.12.00 NVSRAM version: N1814D47R1036V12.dlp This shows that firmware was loaded to controller but not yet activated. Workaround: After checking the items listed in Details section, activate the loaded firmware using this script command: activate storageSubsystem firmware; Mark the affected system in the Enterprise Management window of the Storage Manager. In the menu, go to Tools -> Execute script. A new window will show up. Paste the command in the upper part of this window and choose Tools -> Execute only. The activation will take a while and the controller will reboot. 2. The AIX installation packages do not support the "PREVIEW" option. New limitations with Storage Manager Installer (SMIA) package version 10.36.xx.07 release (controller firmware 07.36.xx.xx). 1. AIX 5.2 is unable to import volume groups with a configured file system from AIX 5.3 or AIX 6.1. To create a filesystem compatible with earlier version, use mkvg -I when creating the filesystem on AIX 5.3 or AIX 6.1. 2. For current HACMP and GPFS support information, please review the interoperability matrix found at: http://www-03.ibm.com/systems/storage/disk/ds4000/interop-matrix.html 3. The AIX installation packages do not support the "PREVIEW" option. Limitations with Storage Manager Installer (SMIA) package version 10.30.xx.xx release (controller firmware 07.30.xx.xx). 1. AIX fcp_array (RDAC) is not supported with DS5000 model storage controllers (DS5100 and DS5300). You must use MPIO. 2. HACMP/GPFS is not supported with 07.30.xx.xx versions of controller firmware at this time. Limitations with Storage Manager Installer (SMIA) package version 10.15.xx.xx release (controller firmware 07.15.xx.xx). 1. HACMP/GPFS is not supported with 07.xx.xx.xx versions of controller firmware. 2. Reconfiguration operation (DRM) is delayed under some circumstances. When a drive fails before the DRM completes, it can take up to eight times as long for the DRM to complete. DRM reconfigurations to RAID 6 have the longest impact since there are four times as many calculations and writes that have to occur compared to other RAID levels. 3. Host Software display of controller current rate is wrong below 4Gbps. Host Software Client - AMW - Logical/Physical View - Controller Properties - Host Interfaces - Current rate is displaying "Not Available" when the controller negotiated speed is 2Gbps. When the controller negotiated speed is reduced to 1GBs, the Current rate displays "2Gbps". Fixed from 10.10.xx.xx 30. When a disk array is in a degraded state, the array will report "needs attention" to both the EMW and the AMW. After taking appropriate corrective action, the AMW view of the array will report "fixing" but the EMW state remains at "needs attention". Both statuses are valid, when the fault state is resolved both views will change to "optimal". Limitations with Storage Manager Installer (SMIA) package version 10.10.xx.xx release (controller firmware 07.10.xx.xx). 1. Controller Alarm Bell icon does not appear as a flashing icon indicator on the screen to get the user's attention but the icon does change appearances. 2. Miswire of drive tray cabling with DS4700 and DS4200 can cause continuous reboot of a controller. To correct this situation, power down the subsystem, cable the drive trays correctly, and power the subsystem back up. 3. Controller button may appeared enabled and mislead the user that a controller is selected where in fact, a controller was not highlighted for the button to appear ready. 4. Search key is not marked correctly in that page due a JavaHelp Bug with JavaHelp 2.0_01. A search for keyword "profile" ended with phase "prese 'nting p' rofile" being marked. 5. storageArrayProfile.txt should be renamed as storageSubsystemProfile.txt in Support Data. 6. Bullets Incorrectly Placed in Volume Modification Help Page 7. Unable to Escape out of Help Display. User will be required to close the window by using window close procedure (exit, etc.) 8. Bullets and Descriptions not aligned into same line in "Viewing mirror properties". 9. The Help window is not getting refreshed properly when using the AMW.Help window. Workaround is to close and reopen Storage Manager client program. 10. CLI command failure for creation of volume(s) if capacity parameter syntax is not specified. A space will need to be used between the integer value and the units used in the capacity option of this command or, "create volume volumeGroup[4] capacity=15 GB…". 11. Customer will see high ITW counts displayed in GUI (RLS feature) and logs (files) for diagnostics (support bundle, DDC, etc.) and may be concerned that he has a problem. This will not cause a Critical MEL event. Known problem previously restricted, when a DS4700 or DS4200 controller reboots, these counters increment. 12. Single tray powercycle during IO activity causes drives in tray to become failed. Customer may see loss of drive (failed) due to timing issue of drive detection & spin-up of the drive. There are one of two conditions that result on power-up: - (Most likely) Drive will be marked as optimal/missing with the piece failed, or - (rarely) Drive will be marked as failed with the piece failed. Workaround is to unfail (revive) drive which restarts reconstruction of all pieces. 13. Event log critical Event 6402 was reported after creating 64 mirror relations. Eventually, the mirror state transitions to synchronizing and proceeds to completion on mirror creation. Workaround is to ignore the MEL logging since this occurs on creation of mirror volumes. 14. Reconfiguration operations during host IO may result in IO errors when arrays contain more than 32 LUNs. These operations include Dynamic Capacity Expansion, Defragmentation, Dynamic Volume Expansion, Dynamic RAID Migration. The workaround is to quiesce host IO activity during reconfiguration. 15. Heavy IO to a narrow volume group of SATA drives can result in host IO timeouts. A narrow volume group refers to an array built of very few drives; namely 1 drive RAID 0, 1x1 RAID 1, and 2 + 1 RAID 5. The workaround is to build arrays of SATA drives out of 4 + 1 or greater. 16. When managing the storage subsystem in-band, the upgrade utility will show the upgrade as failed. This is because of the update and reboot of the controllers when activating the new firmware. SMagent is not dynamic and will need to be restarted to reconnect to the storage subsystem. 17. Selecting and dragging text within the storage profile window causes the window to be continuously refreshed. Work around is to select and copy, do not drag the text. 18. When configuring alerts through the task assistant, the option stays open after selecting OK. The window only closes when the cancel button is selected. 19. The Performance Monitor displays error messages when the storage subsystem is experiencing exception conditions. The performance monitor has a lower execution priority within the controller firmware than responding to system IO and can experience internal timeouts under these conditions. 20. Critical MEL event (6402 - Data on mirrored pair unsynchronized) can occur under certain circumstances with synchronous RVM. The most likely scenario is when both primary and secondary are on a remote mirror and an error occurs with access to that host. Resynchronization should occur automatically, when automatic resynchronization is selected for a mirror relationship. However if any of the host sites should go down during this interval, recovery by the user is required. 21. A persistent miswire condition is erroneously reported through the recovery guru even though the subsystem is properly wired. The frequency of occurrence is low and is associated with an ESM firmware download or other reboot of the ESM. The ESM that is reporting the problem must be reseated to eliminate the false reporting. Not all miswire conditions are erroneous and must be evaluated to determine the nature of the error. 22. Drive path loss of redundancy has been reported during ESM download. This occurs when a drive port is bypassed. In some instances this is persistent until the drive is reconstructed. In other cases it can be recovered through an ESM reboot (second ESM download, ESM pull and replace). 23. Unexpected drive states have been observed during power cycle testing due to internal controller firmware contention when flushing MEL events to disk. The drives have been observed as reconstructing or replaced when they should have been reported as failed. Also volume groups have been reported degraded when all drives were assigned and optimal. An indication that this is the situation would be when drive reconstruction has not completed in the expected amount of time and does not appear to be making any progress. The work around is to reboot the controller owning the volume where the reconstruction has stalled. 24. Sometimes when an ESM is inserted a drive's fault line is asserted briefly. The fault line almost immediately returns to inactive, but the ESMs may bypass the drive. In these circumstances, the administrator will have to reconstruct the failed drive. 25. After a drive fail, a manually initiated copyback to a global hot spare may also fail. The work around is to remove the failed drive and reinsert it, then the copyback should resume and complete successfully. 26. When an erroneous miswire condition occurs (as mentioned above in 21), the recovery guru reports the miswire on one controller but not on the other. In this situation, ignore the other controller and use the information supplied by the controller reporting the problem. 27. Occasionally a controller firmware upgrade to 07.10 will unexpectedly reboot a controller an extra time. This could generate a diagnostic data capture, however the firmware upgrade is always successful. 28. When managing previous releases of firmware (06.19 and prior), "working" gets displayed as "worki" during volume creation. 29. The Performance Monitor error window does not come to the front. You must minimize all other foreground windows to get to the error popup window. 30. When a disk array is in a degraded state, the array will report "needs attention" to both the EMW and the AMW. After taking appropriate corrective action, the AMW view of the array will report "fixing" but the EMW state remains at "needs attention". Both statuses are valid, when the fault state is resolved both views will change to "optimal". 31. When a virtual IO server (VIOS) experiences a complete loss of power, the system remaps the hdisk devices. To recover the system, the administrator must delete the affected virtual devices and create new ones using the new hdisk references for the LUNs. 32. A JS blade can not boot when attached to a storage subsystem running 07.10 controller firmware. This problem is due to a change that removes the vendor unique mode page and returns an illegal request check condition. The e-fixes listed in section 1.5 are required. 33. Configuring separate Email alerts when two Enterprise management windows are open on the same host will cause the alerts to disappear if one of the Enterprise windows is shut down and then restarted. It is recommended that if multiple Enterprise management windows needs to be open, that they are open on separate Hosts which will indeed allow the configuration of alerts to be saved if one of the enterprise management windows is shut down and restarted. Legacy restrictions that are still applicable: 1. Reflected Fibre Channel (FC) OPN frames occurs when intermixing the EXP810, EXP710 and EXP100s behind DS4700 or DS4800 storage subsystems. This behavior causes excessive drive side timeout, drive side link down and drive side link up events be posted in the DS4000 storage subsystem Event log (MEL.) It might also cause drives to be by-passed or failed by the controller. NEW DRIVE SIDE FC CABLING REQUIREMENT MUST BE ADHERED TO WHEN HAVING EXP100 CONNECTED TO THE DS4700 OR DS4800 STORAGE SUBSYSTEMS. Please refer to the latest version of the Installation, User's and Maintenance Guide for these storage subsystems that are posted in the IBM DS4000 Support web site for more information. http://www.ibm.com/systems/support/storage/disk 2. Can not increase the capacity of RAID arrays. RAID arrays with certain combinations of selected segment size and number of drives that made up the arrays will exceed the available working space in controller dacstore, causing a reconfiguration request (like expanding the capacity of the array) to be denied. These combinations are generally the largest segment size (512KB) with the number of drives in the array is 15 drives or more. There is no work-around. C324144 105008 3. Interoperability problem between the Tachyon DX2 chip in the DS4500 and the DS4300 storage subsystem controllers and the Emulex SOC 422 chip in the EXP810 expansion enclosure ESMs causing up to 5 Fibre Channel loop type errors to be posted in the DS4000 storage subsystem Major Event Log during a 24 hour period. There is a small window in the SOC 422 chip that multiple devices can be opened at one time. This ultimately leads to Fibre Channel loop errors of Fibre Channel link up/down, Drive returned CHECK CONDITION, and Timeout on drive side of controller. IBM recommends the use of the Read-Link-Status function to monitor drive loop for any problems in the drive loop/channel. There is no work-around. 4. The single digit of the Enclosure IDs for all enclosures (including the DS4000 storage subsystem with internal drive slots) in a given redundant drive loop/channel pair must be unique. For example, with four enclosures attached to the DS4300, the correct enclosure ID settings should be x1, x2, x3, and x4 (where x can be any digit that can be set). Examples of incorrect settings would be 11, 21, 31, and 41 or 12, 22, 32, and 62. These examples are incorrect because the x1 digits are the same in all enclosure IDs (either 1 or 2). If you do not set the single digit of the enclosure IDs to be unique among enclosures in a redundant drive loop/channel pair, then drive loop/channel errors might be randomly posted in the DS4000 subsystem Major Event Log (MEL), especially in the cases where the DS4300 storage subsystems are connected to EXP810s and EXP100s. In additon, enclosure IDs with same single digits in a redundant drive loop/channel pair will cause the DS4000 subsystem controller to assign a soft AL_PA address to devices in the redundant drive loop/channel pair. The problem with soft AL_PA addressing is that AL_PA address assignment can change between LIPs. This possibility increases the difficulty of troubleshooting drive loop problems because it is difficult to ascertain whether the same device with a different address or a different device might be causing a problem. 5. In DS4000 storage subsystem configurations with controller firmware 6.15.2x.xx and higher installed, the performance of write intense workloads such as sequential Tape restores to DS4000 Logical drives with large I/O request sizes (e.g. 256kB) is degraded if the DS4000 logical drives are created with small segment sizes such as 8KB or 16KB. The work around is to create the DS4000 logical drives with segment size of 64KB or higher. 6. When installing the individual DS4000 host software packages for AIX such as SMclient-AIX-09.16.G5.41.bff on any version of AIX operating system environment, do not use /usr/SMclient as the install directory. The software installer cannot handle the source directory being the same as the target directory and the installation will fail. The workaround is to use another directory such as /tmp. (cmvc 325667). 7. SAN boot (or root boot) is not supported with AIX operating system version 5.1. There is not any SAN boot restrictions with AIX operating system version 5.2 or 5.3. (cmvc 547281). 8. If cables are disconnected from a host port and then reconnected to a different host port, the AIX host will not be able to access the DS4800 storage subsystem. The AIX operating system requires that the controller retain World Wide Name (WWN) information after a logout, which includes a disconnected cable. This condition can cause two ports to present the same port ID information to the host if the cables are pulled and moved to a different AIX host port. The workaround is to reboot the controllers after the cables are disconnected and moved to different host ports. 9. Changing the AIX host cache settings while the storage array is accepting I/O requests can cause I/O errors or loss of access to data. The workaround is to stop all I/O activity to the storage array, and then change the host cache setting. After the host cache settings have been changed, restart I/O activity. 10. Do not pull or insert drives during the drive firmware download. In addition, ALL I/Os must also be stopped during the drive firmware download. Otherwise, drives may be shown as missing, unavailable or failed. 11. Do not perform other storage management tasks, such as creating or deleting logical drives, reconstructing arrays, and so on, while downloading the DS4000 storage subsystem controller firmware and DS4000 EXP ESM firmware. It is recommended that you close all storage management sessions (other than the session that you use to upgrade the firmware) to the DS4000 storage subsystem that you plan to update. ======================================================================= 1.3 Enhancements ---------------- The DS Storage Manager version 10.77.xx.16 host software in conjunction with controller firmware version 7.77.18.xx and higher provides support for - Support for SAS drives with T10PI capability in the DS5020, DS3950, DS5100 and DS5300 storage subsystems. - Support the new IBM DS storage subsystem DCS3700 controller and drive expansion enclosure. - Support for the DS3524 storage subsystem with DC power supplies. - Support for the new 1TB NL SAS drive options for the DS3500 storage subsystems. - Support for DS3500 subsystem enhanced capabilities. Please refer to the DS3500 Installation, User's and Maintenance guide or the DS3500 announcement letter for more information. - When opening the Subsystem Management Window user is asked to set a password. + User can select No to not setting the storage subsystem management Password + If user selects yes, the password can be weak or strong. If no password is selected, or a weak password is set, then a message appears recommending a strong password each time the Subsystem Management Window is opened. - Host type VMWARE has been added to NVSRAM as an additional host type. + The DS4200 and DS4700 will use index 21 + All other supported systems will use index 16 instead. Although not required, if using a Linux host type for a VMWARE host, it is recommended to move to the VMWARE host type since any upgrading of controller firmware and NVSRAM would continue to require running scripts, whereas using the VMWARE host type does not require running scripts. Please refer to the New Features section of the IBM System Storage DS Storage Manager Version 10 Installation and Host Support Guide for additional information about the IBM DS Storage Manager version 10 enhancements. 1.4 Fixes ----------------- New features and changes are described in the corresponding Change History document. Please refer to this document for more information on new features and modifications. 1.5 Level Recommendation and Prerequisites for the update ------------------------------------------------------------ Note: The IBM Storage Manager host software version 10.77 for AIX OS new features and changes are described in the corresponding Change History document. Please refer to this document for more information on new features and modifications. You can verify your configuration with respect to interoperability at: http://www-03.ibm.com/systems/support/storage/config/ssic/ * AIX PTF/APARs can be downloaded from: http://www-912.ibm.com/eserver/support/fixes/fixcentral * Host Bus Adapter(s): http://www-03.ibm.com/systems/support/storage/config/ssic/ * pSeries and RS/6000 adapter code can be downloaded from: http://www-03.ibm.com/systems/support/storage/config/hba/index.wss AIX OS levels -------------- 1. 6.1TL06SP1 - 6100-06-01-1043 2. 7.1TL00SP1 - 7100-00-01-1037 3. VIOS 2.2.0.10-FP-24 - Supported client OS: AIX6.1, AIX7.1, SLES11.1, SLES10.3, RH5.5, IBMi6.1 4. VIOS 2.1.3.10-FP-23 - Supported client OS : AIX7.1, SLES11.1, SLES10.3 Code levels at time of release are as follows ----------------------------------------------- The version of the host-software installer wizard for this release is SMIA-AIX-10.77.xx.16.bin. Note: The web-download Storage Manager version 10.77 host software package must be first unpacked (tar -xvz) into a user-defined directory. Then, go to this directory, locate the AIX directory to access the Storage Manager version host software installation file(s). Starting with the DS4000 storage manager version 9.12, all of the host software packages are included in a single Storage Manager host software installer wizard. During the execution of the wizard, the user will have a choice to install all or only certain software packages depending the need for a given server. There must be at least 900MB of free space in the /opt directory for the installer wizard to install the host software packages. * The DS3950/DS4000/DS5000 Storage Manager host software installer wizard requires the installation of a graphics adapter in the AIX server for it to run. If you wish to use the wizard but do not have a graphics adapter, you can execute the installer via sh -i console to run in console mode. In addition, there must be at least 300MB of free space in the /opt directory for the installer wizard to install the host software packages. For AIX servers without the graphics adapter, individual host software installation packages are provided in the Storage Manager Version for AIX OSes CD under the directory named "/AIX/Individual packages". These individual host software installation packages can also be downloaded at the IBM System Storage™ Disk Storage Systems Technical Support web site: http://www.ibm.com/systems/support/storage/disk This installer wizard will install the following version of the host- software packages SMruntime: 10.77.65.01 SMclient: 10.77.G5.14 SMagent: 10.01.65.06 SMutil: 10.00.65.18 SMesm: 10.77.G5.03 Profiler: 04.94.G5.01 Refer to the IBM System Storage™ Interoperation Center (SSIC) web site - http://www.ibm.com/systems/support/storage/ssic/ for information on the latest supported AIX OS, switches and the HBA released code levels. 1.6 Dependencies ------------------ ATTENTION: 1. The IBM System Storage DS4000 Controller Firmware Upgrade Tool is required to upgrade any system from 6.xx controller firmware to the 7.xx.xx.xx controller firmware. This tool has been integrated into Enterprise Management Window of the DS Storage Manager v10.77 Client. 2. Always check the README files (especially the Dependencies section) that are packaged together with the firmware files for any required minimum firmware level requirements and the firmware download sequence for the DS4000 drive expansion enclosure ESM, the DS4000 storage subsystem controller and the hard drive firmware. 3. Standard installation order for Storage Manager 10.77.xx.xx and controller firmware 07.77.xx.xx: 1. SMruntime - always first 2. SMesm - required by client 3. SMclient 4. SMagent 5. SMutil 6. Controller firmware and NVSRAM 7. ESM firmware 8. Drive firmware IBM DS Storage Manager version 10.77 host software requires the DS3000 /DS4000/DS5000 storage subsystem controller firmware be at version 06.xx.xx.xx or higher. The IBM DS4000 Storage Manager v9.60 supports storage subsystems with controller firmware version 04.xx.xx.xx up to 05.2x.xx.xx. The IBM DS Storage Manager v10.36 supports storage subsystems with controller firmware version 05.3x.xx.xx to 07.36.xx.xx. The IBM DS Storage Manager v10.70 supports storage subsystems with controller firmware version 05.4x.xx.xx to 07.70.xx.xx. ============================================================================== 2.0 Installation and Setup Instructions ------------------------------------------ The IBM System Storage DS Storage Manager version 10 Installation and Host Support Guide is also available on IBM's Support web site as a downloadable Portable Document format (PDF) file. This guide along with the Storage Manager program Online Help provide the installation and support information. ======================================================================= 3.0 Configuration Information and Usage Notes - AIX Platforms --------------------------------------------------------------- * It is important to set the queue depth to a correct size for AIX hosts. Having too large of a queue depth can result in lost file systems and host panics. Please refer to the IBM System Storage DS Storage Manager version 10 Installation and Host Support Guide for details. * Disabling Cache mirroring while the write-cache is permitted, but not recommended for most environments and applications. Loss of data could occur in the event of a controller failure (data in cache, but not written to disk). Refer to the Installation and Support Guide for further information. * SCSI-3 Persistent Reservation is supported on AIX with DS3950/DS4000/DS5000 Storage Systems. * Each AIX host (server) can support 1 or 2 Partitions (or Host Groups), each with a maximum of 256 Logical Drives on AIX 5.2, 5.3 and 6.1. * For most applications, AIX host attaches to DS4000 storage subsystems using pairs of Fibre Channel adapters (HBA). When using fcp_array(RDAC) as the multipath driver: For each adapter pair, one HBA must be configured to connect to controller "A" and the other to controller "B". Each HBA pair must be configured to connect to a single partition in a DS4000 storage subsystem or multiple DS4000 storage subsystems (fanout). To attach an AIX host to a single or multiple DS4000 with two partitions, 2 HBA pairs must be used. Each HBA within a host must be configured in a separate zone from other HBAs within that same host, when connected to the same DS4000 controller port. In other words, only 1 HBA within a host can be configured in the same zone with given DS4000 controller port. * For most Direct-attach applications, the connections of DS4000 storage arrays on AIX should be configured with two HBAs for complete path availability. As such, dual-path configurations are restricted to the following: DS5100/DS5300 - Up to eight servers configurations (2 - 16 HBAs) Each HBA pair must be connected to both A & B host-side controller ports. DS4200/DS4700/DS4800 - Up to four servers configurations (2, 4, 6 or 8 HBAs) Each HBA pair must be connected to both A & B host-side controller ports. DS4100/DS4300 - one or two server configurations only (2 or 4 HBAs) Each HBA pair must be connected to both A & B host-side controller ports. DS4400/DS4500 - one or two server configurations only (2 or 4 HBAs) Each HBA pair must be connected to both A & B controllers. Only 1 connection on each host-side mini-hub can be used. 8G HBAs (FC 5735 and 577D) do not support direct attach with AIX. * Single HBA configurations are allowed, but each single HBA configuration requires that both controllers in the DS4000 be connected to the host. In a switch environment, both controllers must be connected to the switch within the same SAN zone as the HBA. In a direct-attach configurations, both controllers must be "daisy- chained" together. This can only be done on the DS4400/DS4500 storage servers. * Multiple host attachment to a host-side mini-hub is not supported. * Storage Partitions and the Default Host Group Ds3950/DS4000/DS5000 offers a premium feature called "Storage Partitioning" which enables users to associate a set of logical drives on a Storage Server that can only be accessed by specified hosts and host ports. This association of logical drives to a set of hosts and host ports is called a Storage Partition. The benefit of defining Storage Partitions is to allow controlled access to the logical drives on the DS3950/DS4000/DS5000 storage subsystem to only those hosts also defined in the Storage Partition. Without the use of Storage Partitioning, all logical drives appear within what is called the Default Host Group, and they can be accessed by any fibre channel initiator that has access to the Ds3950/DS4000/DS5000 host port. When homogeneous host servers are directly attached to the Ds3950/DS4000/DS5000 storage subsystem, access to all logical drives may be satisfactory, or when attached to a SAN, zoning within the fabric can be used to limit access to the Ds3950/DS4000/DS5000 host ports to specific set of hosts. The DS4300 standard product (without the Turbo feature) provides the Default Host Group. Premium features are available to support four, eight, or sixteen Storage Partitions. If logical drive access control is required for your configuration, particularly in a SAN or multiple server environments, then it is recommended that you add the option for Storage Partitions. On other DS4000/DS5000 storage subsystems which include a minimum number of Storage Partitions, Storage Partitioning should be used when configuring logical drives and hosts. * Booting from a DS4000/DS5000 subsystem utilizing SATA drives for the boot image is supported but not recommended due to performance reasons. * Boot images can be located on a volume in Ds3950/DS4000/DS5000 partitions that have greater than 32 LUNs per partition if utilizing AIX release CD's 5.2 ml-4 (5.2H) and 5.3.0 ml-0 or above. These CD's contain drivers that support greater than 32 LUNS per partition. If older CD's are being used the boot image must reside in a partition with 32 LUNS or less. AIX 5.1 does not support boot images on the DS4000 storage subsystem. * Dynamic Volume Expansion (DVE) is only supported on AIX 5.2 and above. AIX 5.3 must have PTF U499974 installed before using DVE. * When booting from a DS3950/DS4000/DS5000 device, both paths to the boot device must be up and operational. Single HBA configurations are supported, but must have both controllers connected, as described above. * Path fail-over is not supported during the AIX boot process. Once the AIX host has booted, fail-over operates normally. * Interoperability with tape devices is supported on separate HBA and switch zones. * Interoperability with IBM 2105 and SDD Software is supported on separate HBA and switch zones. * Online concurrent firmware and NVSRAM upgrades of FC arrays are only supported when upgrading from 06.xx.xx.xx to another version of 06.xx.xx.xx or from 07.10.xx.xx to 07.36.xx.xx. It is highly recommended that Online FW upgrades be scheduled during low I/O loads. Upgrading firmware from 05.xx.xx.xx to version 06.xx.xx.xx and from 06.xx.xx.xx to 07.xx.xx.xx must be performed with no IOs. There is no work-around. * When using FlashCopy, the Repository Volume failure policy must be set to "Fail FlashCopy logical drive", which is the default setting. The "Fail writes to base logical drive" policy is not supported on AIX, as data could be lost to the base logical drive. * VolumeCopy must be used in conjunction with Flashcopy. The VolumeCopy source volume must be a FlashCopy copy. Refer to the IBM System Storage DS4000 version 10 Storage Manager Installation and Host Support Guide for more information. * Do not perform other storage management tasks, such as creating or deleting logical drives, reconstructing arrays, and so on, while downloading the storage subsystem controller firmware and ESM firmware. It is recommended that you close all storage management sessions (other than the session that you use to upgrade the firmware) to the DS3950/DS4000/DS5000 storage subsystem that you plan to update. * All enclosures (including DS4000 storage subsystem with internal drive slots) on any given drive loop/channel should have complete unique ID's, especially the single digit (x1) portion of the ID, assigned to them. For example, in a maximum configured DS4500 storage subsystem, enclosures on one redundant drive loop should be assigned with id's 10-17 and enclosures on the second drive loop should be assigned with id's 20-27. Enclosure id's with the same single digit such as 11, 21 and 31 should not be used on the same drive loop/channel. In addition, for enclosures with mechanical enclosure ID switch like DS4300 storage subsystems, EXP100 or EXP710 storage expansion enclosures, do not use enclosure ID value of 0. The reason is with the physical design and movement of the mechanical enclosure ID switch, it is possible to leave the switch in a “dead zone” between ID numbers, which return an incorrect enclosure ID to the storage management software. The most commonly returned enclosure ID is 0 (zero). In addition to causing the subsystem management software to report incorrect enclosure ID, this behavior also result in enclosure ID conflict error with the storage expansion enclosure or DS4000 storage subsystem intentionally set the ID to 0. The DS4200 and DS4700 storage subsystems and the EXP420, EXP810, and EXP5000 storage expansion enclosures do not have mechanical ID switches. Thus, they are not susceptible to this problem. In addition, these storage subsystems and storage expansion enclosures automatically set the Enclosure IDs. IBM recommendation is not make any changes to these settings unless the automatic enclosure ID settings resulting in non- unique single digit settings for enclosures (including the storage subsystems with internal drive slots) in a given drive loop/channel. * If there is previous version (8.x or 9.x) of the IBM DS4000 Storage Manager host software (ie. SMRuntime, SMClient, RDAC, SMUtil and SMAgent packages) installed in the system, you have to uninstall it first before installing the new version of the storage manager software. Or you may use the install wizard to overwrite these packages. Refer to the IBM System Storage™ DS4000 Storage Manager version 10 Installation and Support Guide for AIX, HP-UX, Solaris and Linux on POWER for instructions. 3.1 Helpful Hints ------------------------------- 1. The DS4500 and DS4300 storage subsystem have updated recommended drive-side cabling instructions with controller firmware 06.23.xx.xx. The DS4500 instructions are documented in the IBM System Storage DS4500 Installation, Users, and Maintenance Guide (GC27-2051-00 or IBM P/N 42D3302). The DS4300 instructions are documented in the IBM System Storage DS4300 Installation, Users, and Maintenance Guide (GC26-7722-02 or IBM P/N 42D3300). Please follow the cabling instructions in these publications to cable the new DS4500 and DS4300 setup. If you have an existing DS4500 setup with four drive side minuhub installed that was cabled according to the previously recommended cabling instructions, please schedule down time as soon as possible to make changes to the drive side FC cabling. Refer to the IBM System Storage DS4500 and DS4300 Installation, Users, and Maintenance Guide for more information. 2. The ideal configuration for SATA drives is one drive in each EXP per array, one logical drive per array and one OS disk partition per logical drive. This configuration minimizes the random head movements that increase stress on the SATA drives. As the number of drive locations to which the heads have to move increases, application performance and drive reliability may be impacted. If more logical drives are configured, but not all of them used simultaneously, some of the randomness can be avoided. SATA drives are best used for long sequential reads and writes. 3. IBM recommends at least one hot spare per EXP100 drive expansion enclosure. 4. If you are unable to see the maximum number of drives during Automatic Configuration, you should be able to use Manual Configuration to select individual drives and select the maximum number of drives allowed. 5. The DS3950/DS4000/DS5000 controller host ports or the Fibre Channel HBA ports can not be connected to a Cisco FC switch ports with "trunking" enabled. You might encounter failover and failback problems if you do not change the Cisco FC switch port to "non-trunking" using the following procedure: a. Launch the Cicso FC switch Device Manager GUI. b. Select one or more ports by a single click. c. Right click the port(s) and select Configure, a new window pops up d. Select the "Trunk Config" tab from this window, a new window opens e. In this window under Admin, select the "non-trunk" radio button, it is set to auto by default. f. Refresh the entire fabric. 6. Serial connections to the DS4000 storage controller must be set to a baud rate of either 38400 or 57600. Do not make any connections to the DS4000 storage subsystem serial ports unless it is instructed by IBM Support. Incorrect use of the serial port might result in lost of configuration, and possibly, data. 7. Starting with the DS4000 Storage Manager (SM) host software version 9.12 or later, the Storage Manager client script window looks for the files with the file type of ".script" as the possible script command files. In the previous versions of the DS4000 Storage Manager host software, the script window looks for the file type ".scr" instead. (i.e. enableAVT.script for SM 9.12 or later vs. enableAVT.scr for pre-SM 9.12) 8. Do not delete the Access LUN or Access Volume if you want to manage the DS4000 storage subsystem in-band (host-agent managed). The Access LUN is required by the SMClient to communicate with the storage controllers when using the in-band management method. 9. Fabric topology zoning requirement with AIX fcp_array (RDAC) and Solaris RDAC only. To avoid possible problem at the host level, it is best practice that all Fibre Channel (FC) Switches must be zoned such that a single FC host bus adapter can only access one controller per storage array. In addition, this zoning requirement also ensures the maximum number of host connections can be seen and log into the controller FC host port. This is because if a FC HBA port is seen by both controller A and B host ports, it will be counted as two host connections to the storage subsystem - one for controller A port and one for controller B port. Note: The DS4000 storage subsystems DS4500, DS4400 and FAStT500 (IBM machine type 1742 and 3552) have two ports per controller - one per minihub slot. The DS4000 storage subsystems DS4300 (IBM machine type 1722) and DS4100 (IBM machine type 1724) have two ports per controller. The DS4000 storage Server FAStT200 (IBM machine type 3542) has only one port per controller. The DS4700 storage subsystem (IBM machine type 1814) has up to four ports per controller. The DS4800 storage subsystem (IBM machine type 1815) has four ports per controller. 10. All enclosures (including DS4000 storage subsystem with internal drive slots) on any given drive loop/channel should have complete unique ID's, especially the single digit (x1) portion of the ID, assigned to them. For example, in a maximum configured DS4500 storage subsystem, enclosures on one redundant drive loop should be assigned with id's 10-17 and enclosures on the second drive loop should be assigned with id's 20-27. Enclosure id's with the same single digit such as 11, 21 and 31 should not be used on the same drive loop/channel. In addition, for enclosures with mechanical enclosure ID switch like DS4300 storage subsystems, EXP100 or EXP710 storage expansion enclosures, do not use enclosure ID value of 0. The reason is with the physical design and movement of the mechanical enclosure ID switch, it is possible to leave the switch in a “dead zone” between ID numbers, which return an incorrect enclosure ID to the storage management software. The most commonly returned enclosure ID is 0 (zero). In addition to causing the subsystem management software to report incorrect enclosure ID, this behavior also result in enclosure ID conflict error with the storage expansion enclosure or DS4000 storage subsystem intentionally set the ID to 0. The DS4200 and DS4700 storage subsystems and the EXP420 and EXP810 storage expansion enclosures did not have mechanical ID switches. Thus, they are not susceptible to this problem. In addition, these storage subsystems and storage expansion enclosures automatically set the Enclosure IDs. IBM recommendation is not make any changes to these settings unless the automatic enclosure ID settings resulting in non- unique single digit settings for enclosures (including the storage subsystems with internal drive slots) in a given drive loop/channel. ======================================================================= 3.2 Configuration settings ------------------------------ 1. By default, the IBM DS Storage Manager Client does not automatically map logical drives when the IBM DS3950/DS4000/DS5000 storage partitioning premium feature is enabled. This means that the logical drives after being created are not automatically presented to the host systems. a. For a new installation, after creating new arrays and logical drives, create a storage partition with the host type of AIX and map the logical drives to this partition or change the default host type to AIX if the Storage Partitioning premium feature is not enable. b. If you are upgrading the NVSRAM with Storage Partitions, you may have to change the default host type to match the host system OS. After upgrading the NVSRAM, the default host type is reset to Windows 2000/Server 2003 non-clustered for DS4000 storage server with controller firmware version 06.14.xx.xx or later. For DS4000 storage server with controller firmware version 06.12.xx.xx or earlier, it is reset to Windows non-clustered (SP5 or higher), instead. Refer to the IBM DS4000 Storage Manager online help to learn more about creating storage partitions and changing host types. 3.3 Unsupported Configurations -------------------------------------------- The configurations that are currently not being supported with IBM DS4000 Storage Manager Version 10.77 are listed below: 1. The IBM EXP395 Expansion Enclosure is not supported attached to any other IBM DS Storage Subsystems except the DS3950. EXP810 drive enclosures are also supported in the DS3950 with the purchase of a premium feature key. 2. The IBM EXP520 Expansion Enclosure is not supported attached to any other IBM DS Storage Subsystems except the DS5020. EXP810 drive enclosures are also supported in the DS5020 with the purchase of a premium feature key. 3. The IBM EXP5000 Expansion Enclosure is not supported attached to any other IBM DS Storage Subsystems except the DS5100 and DS5300. 4. The DS4100 (machine type 1724-all models) storage subsystem does not support the attachment of the DS4000 EXP710, EXP700 and EXP500 (FC) drive expansion enclosure. 5. The DS4800 storage subsystem (machine type 1815-all models) does not support the attachment of the FAStT EXP500 and DS4000 EXP700 drive expansion enclosures. 6. The DS4200 (machine type 1814 - models 7VA/H) does not support the attachment of the DS4000 EXP100 (SATA), EXP710 (FC) and EXP810 (SATA and FC) drive expansion enclosures. In addition, it does not support Fibre Channel disk drive options. 7. The IBM DS4000 EXP420 Expansion Enclosure is not supported attached to any other IBM DS4000 Storage Subsystems except the DS4200. 8. The DS4100 with Single Controller option does not support the attachment of the DS4000 storage expansion enclosures. 9. The DS5100 and DS5300 storage subsystems do not support the attachment of the DS4000 EXP100, EXP700, EXP710 drive expansion enclosures. The EXP810 is only supported through an RPQ process. 10. The DS5000 EXP5000 drive expansion enclosure is supported attached to the DS5100 and DS5300 only. 11. The DS4700 and DS4800 storage subsystems do not support the attachment of the DS4000 EXP700 drive expansion enclosures. The EXP700 enclosure must be upgraded into DS4000 EXP710 enclosure using the DS4000 EXP700 Models 1RU/1RX Switched-ESM Option Upgrade Kit before it can be attached to the DS4700 and DS4800 storage subsystems. 12. The DS4300 storage subsystem with Single Controller option does not support the controller firmware version 06.xx.xx.xx. The correct firmware version for these DS4300 storage subsystem models is 05.34.xx.xx. 13. Fibre Channel loop environments with the IBM Fibre Channel Hub, machine type 3523 and 3534, in conjunction with the IBM Fibre Channel Switch, machine types 2109-S16, 2109-F16 or 2109-S8. In this configuration, the hub is connected between the switch and the IBM Fibre Channel RAID Controllers. 14. The IBM Fibre Channel hub, machine type 3523, connected to IBM machine type 1722, 1724, 1742, 1814, 1815, 3542 and 3552. 15. A configuration in which a server with only one FC host bus adapter connects directly to any DS4000 storage subsystem with dual controllers is not supported. The supported configuration is the one in which the server with only one FC host bus adapter connects to both controller ports of any DS4000 storage subsystem with dual controllers via Fibre Channel (FC) switch (SAN-attached configuration.) ======================================================================= 4.0 Unattended Mode ------------------------ N/A ======================================================================= 5.0 WEB Sites and Support Phone Number -------------------------------------------------------------- 5.1 IBM System Storage™ Disk Storage Systems Technical Support web site: http://www.ibm.com/systems/support/storage/disk 5.2 IBM System Storage™ Marketing Web Site: http://www.ibm.com/systems/storage/ 5.3 IBM System Storage™ Interoperation Center (SSIC) web site: http://www.ibm.com/systems/support/storage/ssic/ 5.4 You can receive hardware service through IBM Services or through your IBM reseller, if your reseller is authorized by IBM to provide warranty service. See http://www.ibm.com/planetwide/ for support telephone numbers, or in the U.S. and Canada, call 1-800-IBM-SERV (1-800-426- 7378). IMPORTANT: You should download the latest version of the DS Storage Manager host software, the DS storage subsystem controller firmware, the DS drive expansion enclosure ESM firmware and the drive firmware at the time of the initial installation and when product updates become available. For more information about how to register for support notifications, see the following IBM Support Web page: www.ibm.com/systems/support/storage/subscribe/moreinfo.html You can also check the Stay Informed section of the IBM Disk Support Web site, at the following address: www.ibm.com/systems/support/storage/disk ======================================================================= 6.0 Trademarks and Notices -------------------------- The following terms are trademarks of the IBM Corporation in the United States or other countries or both: IBM AIX System Storage the e-business logo xSeries, pSeries HelpCenter UNIX is a registered of The Open Group in the United States and other countries. Microsoft, Windows, and Windows NT are of Microsoft Corporation in the United States, other countries, or both. Linux is a trademark of Linus Torvalds in the United States, other countries, or both. Java and all Java-based trademarks and logos are trademarks of Sun Microsystems, Inc. in the United States, other countries, or both. Other company, product, or service names may be trademarks or service marks of others. ======================================================================= 7.0 Disclaimer -------------- 7.1 THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IBM DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY WITH RESPECT TO THE INFORMATION IN THIS DOCUMENT. BY FURNISHING THIS DOCUMENT, IBM GRANTS NO LICENSES TO ANY PATENTS OR COPYRIGHTS. 7.2 Note to U.S. Government Users -- Documentation related to restricted rights -- Use, duplication or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corporation.