On Thu, Sep 9, 2010 at 1:26 PM, Freddie Cash <fjwc...@gmail.com> wrote: > On Thu, Sep 9, 2010 at 1:04 PM, Orvar Korvar > <knatte_fnatte_tja...@yahoo.com> wrote: >> A) Resilver = Defrag. True/false? > > False. Resilver just rebuilds a drive in a vdev based on the > redundant data stored on the other drives in the vdev. Similar to how > replacing a dead drive works in a hardware RAID array. > >> B) If I buy larger drives and resilver, does defrag happen? > > No.
Actually, thinking about it ... since the resilver is writing new data to an empty drive, in essence, the drive is defragmented. >> C) Does zfs send zfs receive mean it will defrag? > > No. Same here, but only if the receiving pool has never had any snapshots deleted or files deleted, so that there are no holes in the pool. Then the newly written data will be contiguous (not fragmented). > ZFS doesn't currently have a defragmenter. That will come when the > legendary block pointer rewrite feature is committed. > > > -- > Freddie Cash > fjwc...@gmail.com > -- Freddie Cash fjwc...@gmail.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
