Planned power off/on of the primary storage system
Powering off the primary storage system
1. Direct server I/O to the storage system at the secondary site.
Using the alternate path software, stop I/O from servers to the storage
system at the primary site.
2. On the storage system at the secondary site, 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 P-VOLs of theGAD 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. Power off the storage system at the primary site.
Powering on the primary storage system
1. Power on the storage system at the primary site.
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. Confirm that the pair status of the GAD P-VOLs is PSUS(Block) and that
the pair status of the S-VOLs is SSWS(Local).
pairdisplay -g oraHA -fcxe -IH1
5. On the storage system at the secondary site, resynchronize the GAD pairs
by reversing the primary and secondary volumes (swap resync).
pairresync -g oraHA -swaps -IH1
6. 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 -IH1
7. Using the alternate path software, resume I/O from the servers to the
storage system at the primary site.
8. If necessary, reverse the primary and secondary volumes.
Planned power off/on of the secondary storage system
Powering off the secondary storage system
1. Direct server I/O to the storage system at the primary site.
Using the alternate path software, stop I/O from servers to the storage
system at the secondary site.
7-2
Planned outage of global-active device storage systems
Hitachi Virtual Storage Platform G1000 Global-Active Device User Guide
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