OEM Volume group functions performed by PowerHA SystemMirror
When PowerHA® SystemMirror® identifies OEM volume groups of a particular type, it provides built-in processing functions for them or allows you to specify your own custom methods for any one of these functions.
These functions include:
- List volume groups of a specified type defined on the nodes.
- List physical and logical disks comprising a specified volume group.
- Bring a volume group online and offline.
- Determine a volume group status.
- Verify volume groups configuration.
- Provide a location of log files and other debugging information. You can then view this information by using the AIX® snap -e command.
PowerHA SystemMirror enables you to manage OEM volume groups in a PowerHA SystemMirror cluster by bringing them online and offline as needed for cluster event processing.
Before bringing a volume group online or offline, PowerHA SystemMirror checks the volume group type to determine whether it must use the corresponding built-in custom method to manage the volume group and file system and bring it online or offline as needed.