![](/images/new-backgrounds/1330591/33059157x1.webp)
11HP 3PAR SRA 5.5.2 SRM vs HP 3PAR Remote Copy state diagram
Table 1 Remote Copy failover from Site A to Site B
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| Site A Role |
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| After HP | Site B Role |
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| 3PAR | after HP 3PAR |
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| Execution | System | System | HP 3PAR OS |
State | SRM Command | Site | Command | Command | Command |
1 | — | — | Primary | Secondary | – |
Failover | checkFailover | B | Primary | Secondary | getvv |
1.1 |
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| getvlun |
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| |
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| getrcopy |
Failover | syncOnce | A | Primary | Secondary | getvv |
1.2 |
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| getvlun |
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| |
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| syncrcopy |
Failover | querySyncStatus | A | Primary | Secondary | getvv |
1.3 |
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| getvlun |
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| |
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| getrcopy |
Failover | prepareFailover | A | Primary | Secondary | getvv |
1.4 |
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| getvlun |
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| |
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| getrcopy |
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| removevlun |
Failover | failover | B | Primary | getvv | |
1.5 |
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| getvlun |
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| getrcopy |
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| gethost |
Description
State 1
Check current group status.
Make sure all changes are replicated to the remote site.
Report replication status.
Remove LUN exposure from the host. Add Remote Copy state to the registry.
Failover the Remote Copy group to the target site. Add the Remote Copy state to the registry.
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