Planned power off/on of the external storage system (I/O
at secondary site)
Powering off the external storage system (I/O at secondary site)
1. Direct server I/O to the storage system at the secondary site.
Using the alternate path software, stop I/O from the servers to the
storage system at the primary site.
2. On the secondary storage system, suspend the GAD pairs to change the
pair status of the S-VOLs to SSWS (swap suspension).
pairsplit -g oraHA -RS -IH1
3. Verify that the pair status of the P-VOLs of the GAD pairs has changed to
PSUS(Block) and that the pair status of the S-VOLs has changed to
SSWS(Local).
pairdisplay -g oraHA -fcxe -IH1
4. On the primary and secondary storage systems, disconnect the quorum
disks.
raidcom disconnect external_grp -ldev_id 0x8888 -IH1
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
disks have been disconnected.
raidcom get path -path_grp 1 -IH1
6. Power off the external storage system.
Powering on the external storage system (I/O at secondary site)
1. Power on the external storage system.
2. Confirm that the primary and secondary storage systems and the external
storage systems for the quorum disks 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 connections to
the quorum disks.
raidcom check_ext_storage external_grp -ldev_id 0x8888 -IH1
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 1-2 -IH1
6. Confirm that the external volumes of the primary and secondary storage
systems are recognized as quorum disks.
raidcom get ldev -ldev_id 0x8888 -IH1
7. Check for SIMs about quorum disk blockade, and delete the SIMs.
Planned outage of global-active device storage systems
7-5
Hitachi Virtual Storage Platform G1000 Global-Active Device User Guide
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