On 04/23/11 7:00 AM, Marinos Yannikos wrote:
Hi,

I have a beefy server with 2 SANs, 1 "fast" (A) and 1 "slow" (B) and 1.3TB worth of 8.4.4 databases on A. A needs to be replaced/wiped completely with as little downtime as possible. It's flash-based and the modules need to be replaced, so no "swapping the SAN and keeping the disks". The databases are relatively busy, generating 8-50 16MB WAL segments per minute).

Several methods spring to mind:

f) setup a mdraid mirror between your SAN A logical volumes and new storage. when its finished mirroring, remove the SAN A LUN(s) from the mirror(s)

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