Hello all,
I've recently inherited an old MD3000i powervault that has a couple issues which recently came up. I'm posting this question to the community first as it is the most vexing one for me.
This PowerVault has two RAID cards that have split at 2TB system into a pair of RAID 5 arrays that contain an independent virtual disk handled by their own individual RAID card. We have two 2003 servers attached to this SAN that use it as a host for multiple SQL 2005 databases in a Cluster setup between the two servers. One of the RAID cards' battery failed and will need replacement. Other issue is the other RAID has had one of its disks fail.
My question is two part:
- Under the PowerVault MDSM > Recovery Guru "Procedure for Storage Arrays with Two RAID Controller Modules" section for repairing the failed battery, the first step is listed as "If there are any hosts connected to this storage array that are NOT running a host-based, multi-path failover driver, stop I/O to the storage array from each of these hosts."
- Can someone please elaborate on what this is asking in regards to the setup we have?
- After that, the next step I have read is that I will need to change the Virtual Disk Ownership/Preferred Path under the Modify tab and move the virtual disk over to the good RAID card that is handling a degraded virtual disk array due to a failed drive.
- I cannot find a clear answer if this can actually be done since that RAID card is already handling its own virtual disk.
- If this is not possible, how can this be achieved without data loss?
Thank you in advance for any help!