Revert to a Previous CPU/Memory Configuration

Use this procedure to revert a compute node to a previous CPU/Memory configuration. You must perform this procedure on each member in a cluster. The tool does not automatically propagate changes to every cluster member.

1. Log in as superuser on the compute node's control domain.
2. List previous configurations.

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   Note - You can also view previous configurations in the log files. See Access osc-setcoremem Log Files.

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   # ldm list-config
   factory-default
   V_B4_4_1_20140804141204
   after_install_backup
   CM_2S1T_1S512G_3S1536G_082020141354
   CM_2S1T_1S512G_3S1536G_082120140256
   CM_1S512G_1S512G_4S2T_082120140321 [next poweron]
   

   For details about SP configuration files see View the SP Configuration.

3. Revert to a previous configuration.

   # ldm set-config CM_2S1T_1S512G_3S1536G_082020141354
   

4. Halt all domains, then halt the primary domain.
5. Restart the system from the service processor.

   # #.
    
   -> cd /SP
   -> stop /SYS
   Are you sure you want to stop /SYS (y/n) ? y
   Stopping /SYS
    
   -> start /SYS
   Are you sure you want to start /SYS (y/n) ? y
   Starting /SYS
   

6. Boot all domains and zones.

Related Information

• Access osc-setcoremem Log Files

• View the SP Configuration

• Remove a CPU/Memory Configuration