Hi there, can vdisk be migrated between the mdiskgrps having different extent size?
Thanks in advance
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3 replies Latest Post - 2009-11-03T22:17:33Z by SystemAdmin
Pinned topic vdisk migrate SVC
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Updated on 2009-11-03T22:17:33Z at 2009-11-03T22:17:33Z by SystemAdmin
SystemAdmin 110000D4XK4779 PostsACCEPTED ANSWER
Re: vdisk migrate SVC2009-06-12T00:53:19Z in response to vaultYou cannot migrate vdisks between mdiskgrps, where each mdisk group has a different extent size.
So this is an issue.
But IBM brought out VDisk mirroring in 4.3 code which CAN mirror a vdisk between mdisk groups with different extent sizes.
So if you want to do a migration from small extent sizes to larger ones, upgrade your SVC code and then use vdisk mirroring to achieve this.
Check out this Redbook for more info:
vault 270000PC083 PostsACCEPTED ANSWER
Re: vdisk migrate SVC2009-11-03T21:57:57Z in response to SystemAdminHi,
When I try to make vdisk mirror to copy of one the existing vdisk to anoter manage disk group to migrate the DS8000 data to XIV, I recieved the error CMMVC6350E "The command failed because there is insufficient mirror bitmap space". I checked io group info it shows that SVC io grp doesn't have available memory to allocate. How can I allocate memory to io grp to make the vdisk mirror funtion worked?
#svcinfo lsiogrp 1
Thanks and Regards
SystemAdmin 110000D4XK4779 Posts