HP XP Racks User Manual
Page 49
9.
On the secondary storage system, complete the following:
1.
Run the following External Storage command on the quorum disk:
Reconnect External Volumes
2.
Run the following command on the S-VOL:
pairresync -swaps
3.
Make sure that P-VOL and S-VOL status is PAIR.
10. Using the multipath software, complete the following:
1.
Vary the owner path online.
2.
Vary the non-owner path offline.
11. On the primary storage system, make sure that S-VOL status (original P-VOL) is SSWS.
12. On the secondary storage system, make sure that P-VOL status (original S-VOL) is PSUS.
13. On the primary storage system, complete the following:
1.
Run the following command on the S-VOL:
pairresync -swaps
2.
Make sure that P-VOL and S-VOL are reversed to their original pair configuration and
that status is PAIR.
14. (If the non-owner path is offline) Using the multipath software, vary it online.
*1: If you vary the owner path offline during I/O processing, the multipath software may display
a message saying that the path is offline due to a path failure. In this case, you can ignore the
message.
*2: Skip this step when you power off the primary storage system only.
*3: When the host operating system is Windows, the multipath software may return a host-to-P-VOL
path failure when you power on the primary storage system. In this case, you can ignore the
message. This happens because ESAM blocks access to the primary storage system after the plug
and play function automatically recovers the owner path to online.
Performing planned outages (secondary storage system and quorum disk)
Use this procedure to perform a planned outage of the secondary storage system and the quorum
disk connected to the system.
1.
Using multipath software, vary the non-owner path offline.
2.
On the primary storage system, complete the following:
1.
Split the pair.
2.
Make sure that P-VOL status is PSUS.
3.
Run the following External Storage command on the quorum disk:
Disconnect External Volumes
3.
Power off the secondary storage system.
4.
Power off the quorum disk. If you are powering-off only the secondary storage system, skip
this step.
5.
Power on the quorum disk. If you are powering-off only the secondary storage system, skip
this step.
6.
Power on the secondary storage system.
7.
On the primary storage system, complete the following:
1.
Run the following External Storage command on the quorum disk:
Reconnect External Volumes
2.
Resynchronize the pair.
3.
Make sure that P-VOL status is PAIR.
The different types of maintenance tasks
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