Primary Logical Drive

The primary logical drive in a in a Remote Mirror is the logical drive that accepts host I/O and stores application data. The data on a primary logical drive is replicated to the secondary logical drive .

The controller owner of the primary logical drive initiates remote writes to the secondary logical drive to keep the data on the two logical drives synchronized.

The controller owner of the primary logical drive initiates a full synchronization after a link interruption or logical drive error that caused a Remote Mirror to become Unsynchronized is corrected.