When using GAD pairs, you should know how to properly power on the external storage system when server I/O continues to the GAD storage system.
- Power on the external storage system.
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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.
- Check for SIMs about path blockage, and complete the SIMs.
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On the primary and
GAD secondary storage systems, establish the connections to the quorum disks.
Command example: raidcom check_ext_storage external_grp -ldev_id 0x8888 -IH1
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Confirm that the external storage system is connected correctly.
raidcom get path -path_grp 1 -IH1 PHG GROUP STS CM IF MP# PORT WWN PR LUN PHS Serial# PRODUCT_ID LB PM 1 1-2 NML E D 0 CL5-C 50060e8007823521 1 0 NML 833333 VSP One B20 series N M -
On the primary and
GAD secondary storage systems, confirm that the connections to the quorum disks have been established.
Command example: raidcom get external_grp -external_grp_id 1-2 -IH1
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Confirm that the external volumes of the primary and
GAD secondary storage systems are recognized as quorum disks.
Command example: raidcom get ldev -ldev_id 0x8888 -IH1
- On the primary and GAD secondary storage systems, check for SIMs about quorum disk blockade, and complete the SIMs.