In the last episode (Apr 07), krad said: > On 7 April 2010 05:38, Freddie Cash <fjwc...@gmail.com> wrote: > > On Tue, Apr 6, 2010 at 9:35 PM, lhmwzy <lhm...@gmail.com> wrote: > > > What's your mean?? > > > > See the archives for the freebsd-fs mailing list. There are two > > separate groups working on getting ZFSv22 added to FreeBSD 9-CURRENT. > > And there's work ongoing to get ZFSv15 added to FreeBSD 8-STABLE. > > > > IOW, just be patient. Good things will come to those who wait. ;) > > If you re hankering for dedup you better have a big box as its a complete > resource hog. From what we have seen on our x4500 filers we need about > 100gig of ram or l2arc ssd to hold the all the metadata for the 34TB of > storage, otherwise the system grinds to a halt.
I wish they had an option for "opportunistic" dedup, where if a block is already in ARC it can be a dedupe candidate, but it won't look it up in the DDT if it isn't already in memory. That catches the simple "cp -R dir1 dir2" cases without blowing up the ARC on DDT blocks that 99.9999% of the time don't match. -- Dan Nelson dnel...@allantgroup.com _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"