Re: Has Reclaim Storage becoming outdated?

On 10/14/2014 11:24 AM, CRPence wrote:

As an iASP reclaim, I seem to recall that given their probable and
preferred use in HA, then the backup\mirror iASP would be activated in
place of the one taken offline, and thus that offline copy could be
reclaimed _while_ the other iASP is active in its place.?

Well yes this could be done. In PowerHA this would be a CHGASPSSN with *DETATCH as the action. Then you would be able to bring the backup copy on line and then there run the full reclaim on that iASP. This would work marvelously and allow production to continue.

BUT then there is a problem. When you *REATTACH the backup site to production, any changes done there by the RCLSTG to that copy will be overwritten by the current copy on production. Oops!

So for that to be in any way effective one would need to do some sort of object level compare to see what's different between production and backup, then apply those changes to production before reestablishing the mirroring. That seems fabulously problematic to me.


- Larry "DrFranken" Bolhuis

www.frankeni.com
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