IHAC who has NetApp filer with mixed disks: FC and SATA. He initially configured many vfilers (aka MultiStore) on SATA drives (using FlexVols) but now decided to move vfilers from SATA to FC aggregates. The problem is to minimize downtime (each vfiler has several huge data volumes). vfiler migrate could be a good (although not perfect) solution but it has to be performed between distinct filers (volume names must match).
I am considering the following scenario: - create new vfiler - create corresponding volumes - make baseline SnapMirror transfer (I tried ndmpcopy but it does not fit to the solution) - unmount clients - close shares/exports on the moved volume - make incremental SnapMirror transfer - recreate shares - remount clients - repeat above steps for next volumes
I do not like this solution because: - it requires SnapMirror license (VolCopy requires extreme long downtime, ndmpcopy is file level incremental and does not synchronize removed files/dirs), - it requires significant amount of work on client side (new server, new export name).
Any better ideas will be appreciated!
Best regards,
Jacek Nogala
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