On Mon, Jun 2, 2008 at 3:58 PM, wan_jm <[EMAIL PROTECTED]> wrote: > In our system, we need to migrating from UFS in a short time. > according to the ZFS_Best_Practices_Guide. before migration, we should > unshared the UFS, and then umount the ZFS,and then do migration, which means > during migration, the service on the machine should stop. but we can't afford > the operation for too long time. what can i do? What we did here is copy everything over initially, with the service up, and then one share at a time we took down the UFS share, ran rsync from the UFS to the ZFS, and reshared the newly synchronized filesystem. We don't have much activity from 5 pm on, so this meant a) minimal downtime for actual users and b) quick rsyncs. If you have a period of inactivity like this, it could be a good strategy for you.
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