Information about system and device maintenance
The following maintenance activities do not affect SI replication pairs.
More than one SI pairs might suspend if cache maintenance is executed. Maintenance should be scheduled during times of low system activity.
Performing maintenance of physical disk drives that provision LDEVs used by SI can be performed without impacting SI.
If a physical device failure occurs, the pair status is not affected because of the RAID architecture.
If a physical device failure requires the VSP G200, G400, G600 storage system to utilize dynamic sparing or automatic correction copy, the pair status is not be affected.
If an LDEV failure occurs, the VSP G200, G400, G600 storage system suspends the pair.
If an SI pair is using an LDEV, certain activities are not allowed. You can only block (for maintenance), format, or restore an LDEV that is in use by only a pair in PSUE status.