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Asked by davewex in Storage Technology
Hi,
I have an MSA2012sa with dual controllers. Controller A is the owner of 2 volumes and B is the owner of another 2. I have MPIO round robin on the server. I have 2 HBAs in the DL380, one HBA to port 1 on each controller.
Controller A failed the other day and B became the preferred owner but the 2 volumes owned by A disappeared from the Windows server. I gave B rw access to B for teh 2 volumes and they appeared.
Going by this both controllers should have rw access to all volumes. Is that correct? I think I did that before and each volume showed up twice in disk manager in Windows.
What would the best way be to test failover of a controller. I wouldn't like to pull an active controller but can I pull a SAS cable from the HBA in the server? How about shutting the MSA and removing a controller and powering it back on?
20091111-EE-VQP-91 - Hierarchy / EE_QW_3_20080625