Planning LVM mirroring

Edit online

Logical volume manager (LVM) mirroring provides the ability to allocate more than one copy of a physical partition to increase the availability of the data. When a disk fails and its physical partitions become unavailable, you still have access to mirrored data on an available disk. The LVM performs mirroring within the logical volume.

Within a PowerHA® SystemMirror® cluster, you can mirror the following:

Logical volume data in a shared volume group
The log logical volume for each shared volume group with file systems