On Wed, Dec 16, 2009 at 6:17 AM, Steven Sim <unixan...@gmail.com> wrote: > r...@sunlight:/root# zfs send myplace/myd...@prededup | zfs receive -v > myplace/mydata > cannot receive new filesystem stream: destination 'myplace/fujitsu' exists > must specify -F to overwrite it
Try something like this: zfs create -o mountpoint=none myplace/dedup zfs unmount myplace/mydata # Make sure the source isn't changing anymore zfs snapshot myplace/myd...@prededup zfs send -R myplace/myd...@prededup | zfs receive -du myplace/dedup It'll create a new filesystem myplace/dedup/mydata zfs rename myplace/mydata myplace/mydata_old zfs rename myplace/dedup/mydata myplace/mydata zfs mount myplace/mydata You can now destroy the old dataset. I'm also adding a user property to the dedup'd copy so I don't accidentally do it again, eg: zfs set com.freaks:deduped=yes myplace/dedup/mydata prior to the 'zfs rename'. There's a little more finesse you can use to limit the time your source dataset is unmounted. Do a snapshot and send|receive to get most of the data over, then unmount and create a new snapshot and send|receive to catch any changes since the first. -B -- Brandon High : bh...@freaks.com Mistakes are often the stepping stones to utter failure. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
