subscribe iconSubscribe to this information
POWER7 information

Functions requiring special attention in an HA two-system RAID configuration

Manual intervention might be required on the system or partition containing secondary controller to get visibility to the new configuration.

Many configuration and serviceability functions need to be performed on the system or partition that contains a the primary controller. Any functions performed on the system or partition that contains a the primary controller might also require some manual intervention on the system or partition that contains a secondary controller to get visibility to the new configuration.

The following table lists some of the common functions and the required steps to perform on the secondary controller:
Table 1. Configuration steps for the secondary controller
Function performed on primary controller Required configuration on secondary controller
Create pdisk (Format to 528 Byte Sectors)

If device was previously a JBOD hdisk:  rmdev –dl hdiskX
Then configure new pdisk device:  cfgmgr –l sissasX

Delete pdisk (Format to 512 Byte Sectors)

Remove pdisk device:  rmdev –dl pdiskX  
Then configure new hdisk device:  cfgmgr –l sissasX

Create Disk Array Configure new hdisk device: cfgmgr –l sissasX
Delete Disk Array Remove array hdisk device: rmdev –dl hdiskX
Add disks to Disk Array No configuration steps needed
Reconstruct Disk Array No configuration steps needed
Create/Delete Hot Spare disk No configuration steps needed
Add disk (Hot Plug Manager) Configure new disk device: cfgmgr –l sissasX
Remove disk (Hot Plug Manager) Remove disk device: rmdev –dl pdiskX
Reclaim Controller Cache Storage No configuration steps needed


Send feedback | Rate this page

Last updated: Thu, October 10, 2013