HP XP Racks - Manual (Page 52)

NOTE: You need to determine the type of failure before you can determine which recovery
procedure to use.
For more information, see “Using system messages to check for failures” .
•
“Using Remote Web Console to check for failover” (page 52)
•
“Using RAID Manager to check for failover” (page 52)
•
“Using multipath software to check for failover” (page 52)
Using Remote Web Console to check for failover
If you are using RWC, you use status information about the secondary volume to check to see if
failover has occurred.
•
In the Pair Operation window, if the following values appear for the secondary volume, failover
occurred:
•
Status is SSWS
•
Vol Access is Access (Lock)
Using RAID Manager to check for failover
If you are using RAID Manager, use the following procedure to obtain status information about
the secondary volume to see if failover has occurred.
1. Run the pairdisplay command on the secondary storage system.
2. If the status value for the secondary volume is SSWS, failover occurred.
Using multipath software to check for failover
If you are using multipath software, check the path status information to see if failover has occurred.
1. Run the path status viewing command.
2. If the system returns the following status values for the owner and non-owner paths, failover
occurred:
•
Owner path is offline
•
Non-owner path is online
Next steps
You need to determine the type of failure before you can determine which recovery procedure to
use.
For more information, see “Using system messages to check for failures” .
Option 2: Check for failures only
You can use automatically generated system messages to see if failures have occurred and to
determine the type of failure. These system messages contain information about the type of failure
that occurred.
Based on these messages, you determine which recovery procedure to use.
For more information, see “Determining which basic recovery procedures to use” (page 53) .
Using system messages to check for failures
Use the system information messages (SIM) and path failure system messages to check for failures
and to determine the type of failure.
1. Check for system information messages from the primary or secondary storage system.
2. Check for path failure messages generated by the multipath software on the host.
52 Disaster recovery