Hi
We last week moved data from a HP EVA SAN to a HP 3PAR SAN and we ran into a little problem....or not so very small actually.
The problem we had was with a SQL MS-cluster and when was preparing for the move. According to the HP white paper you can this procedure and nothing will happens. This was what we did:
- In an MS-DOS window, run the diskpart.exe command or click on the PowerShell button and then, at the PowerShell prompt, run the diskpart.exe command.
- At the DISKPART prompt, type: SAN policy=onlineall and then press Enter.
- Verify that the SAN policy is set to onlineall, type SAN, and then press Enter.
- Exit the diskpart.exe application, type exit, and the press Enter.
Now the HP 3PAR LUNs will not be marked offline following an HP 3PAR array firmware upgrade.
On Windows Server 2012, the new SAN policy setting is applied on the fly and a reboot is not necessary.
On Windows Server 2008, the new SAN policy setting will take effect onlyafter the server is rebooted.
Taken from:
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c03290621/c03290621.pdf
Now, what happend was that we lost the disks for cluster and one database became corrupted.
So, was this a cause of what we did or just a coincident of something else?
This is a Windows 2008 x64 cluster with SQL 2008 R2.
HP EVA 6400 to HP 3PAR.
Cheers!