Rebuilding the System Data Repository on an
RS/6000 SP/PSSP System

Contents

This document details how to rebuild the System Data Repository (SDR) on any RS/6000 SP/PSSP Control Workstation. Use this procedure only if hostnames or IP addresses will NOT be changed.

The information in this document applies to the following:

• AIX Version 4.2.1 or later.
• Parallel System Support Programs (PSSP) version 2.4 or later.

The product documentation library is also available:
http://www.rs6000.ibm.com/resource/aix_resource/Pubs/index.html

1. Ensure that you have all of the IP addresses and hostnames for the nodes, enter:

   	splstdata -a <adapters>
   	splstdata -n <nodes>
   

   NOTE: Document all adapter names and IP addresses. The/etc/hosts file also should contain the adapter names and IP addresses. Also document the initial and reliable hostnames.

2. Gather information about the tty's that are connected to the frames, enter:

   	splstdata -f  <frames>
   

3. Create an /etc/bootptab.info file, enter:

   	splstdata -b <boot>
   

   After entering the preceding command, you will see the hardware address. Insert the hardware address in the /etc/bootptab.info file in the following format (one node per line, no blank lines, and no empty spaces).

   	1 12DE0031E100
   	2 20K09287E03F
   

4. Archive the SDR, enter:

   	SDRArchive <today's date>
   

   After entering the preceding command, you will see the filename that is created on the screen.

5. Delete the SDR, enter:

   	cd /spdata/sys/sdr
   	rm -r defs
   	rm -r partitions
   	rm -r system
   	stopsrc -g sdr
   

6. Recreate the SDR, enter:

   	install_cw
   	spframe -r yes 1 2 /dev/tty0
   

7. Enter the frame information in the SDR, enter:




	smitty enter_data

Select SP Site Environment and ensure that the cw_lppsource is pointing to the correct directory.

8. Enter the node information in the SDR, enter:

   	smitty node_data
   

   For PSSP 2.4:

   • Select SP Ethernet Information for the SP reliable Ethernet.
   • Select Get Hardware Ethernet Addresses which will get the information out of the /etc/bootptab.info file created in Step 3.
   • Select Additional Adapter Information and enter any other Ethernet/Token Ring adapters and css0.
   • Select Hostname Information only if the reliable and inital hostnames were different.
   • Select Boot/Install/usr Server Information and specify everything that the nodes were pointing to before.

   For PSSP 3.1.0 and above:

   • Select SP Ethernet Information for the SP reliable Ethernet.
   • Select Get Hardware Ethernet Addresses which will get the information out of the /etc/bootptab.info file created in Step 3.
   • Select Additional Adapter Information and enter any other Ethernet/Token Ring adapters and css0.
   • Select Hostname Information only if the reliable and initial hostnames were different.
   • Select Change Volume Group Information and specify everything that the nodes were pointing to before.
   • Select Boot/Install Server Information and ensure that it is the same boot/install server as before.

9. Recycle the syspar daemons to retrieve the host responses, enter:

   	syspar_ctrl -D
   	syspar_ctrl -A
   

   You may have to execute the previous command on the nodes. To do this, issue the following commands.

   	dsh -a syspar_ctrl -D
   	dsh -a syspar_ctrl -A
   

   
   
   
   

   [ Doc Ref: 97338708021352     Publish Date: Nov. 20, 2000     4FAX Ref: 8746 ]