HP XP P9000 External Storage Access Manager User Guide (AV400-96607, January 2014)

You select the procedure to use based on a number of factors, including the continuation of host
I/O, failover, and the status of the secondary volume.
Prerequisites
Make sure you have identified the type of failure that occurred by using the system information
messages (SIM) and path failure system messages.
For more information, see “Using system messages to check for failures”.
NOTE: The procedures for RAID Manager and RWC are the same.
1. If failures occur and you perform pair operations, host I/O may stop. Make sure that all failures
are cleared.
2. Use RAID Manager on the host.
3. Use multipath software on the host.
Recovery from failures using resynchronization 63