raidcom disconnect external_grp -ldev_id 0x999 -IH0
Note: When you disconnect a quorum disk, SIM (DEF0ZZ*) (quorum disk
blockade) might be issued. If this SIM is issued, delete the SIM after
powering on the storage system and reconnecting the quorum disk.
*ZZ: quorum disk ID
5. On the primary and secondary storage systems, confirm that the quorum
disk has been disconnected.
raidcom get path -path_grp 1 -IH0
6. Power off the external storage system.
Powering on the external storage system (I/O at primary site)
1. Power on the external storage system.
2. Confirm that the primary and secondary storage systems and the external
storage system for the quorum disk do not have any blocked parts.
If any parts are blocked, recover them.
3. Check for SIMs about path blockage, and delete the SIMs.
4. On the primary and secondary storage systems, establish the connections
to the quorum disks.
raidcom check_ext_storage external_grp -ldev_id 0x9999 -IH0
5. On the primary and secondary storage systems, confirm that the
connections to the quorum disks have been established.
raidcom get external_grp -external_grp_id 1-1 -IH0
6. Confirm that the external volumes of the primary and secondary storage
systems are recognized as quorum disks.
raidcom get ldev -ldev_id 0x9999 -IH0
7. Check for SIMs about quorum disk blockade, and delete the SIMs.
8. Confirm that the pair status of the P-VOLs of the GAD pairs is PSUS(Local)
and that the pair status of the S-VOLs is SSUS(Block).
pairdisplay -g oraHA -fcxe -IH0
9. Wait for more than 5 minutes after completing step 4, and then
resynchronize the GAD pairs on the primary storage system by specifying
the primary volume.
pairresync -g oraHA -IH0
10. Confirm that the pair status of the P-VOLs and S-VOLs of the GAD pairs
has changed to PAIR (Mirror (RL)).
pairdisplay -g oraHA -fcxe -IH0
11. Using the alternate path software, resume server I/O to the storage
system at the secondary site.
7-4
Planned outage of global-active device storage systems
Hitachi Virtual Storage Platform G1000 Global-Active Device User Guide
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