Date: Tue, 28 Aug 2012 10:18:10 +0200 From: Andreas Nilsson <andrnils@gmail.com> To: antonin tessier <antonintessier@live.fr> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS compression doesn't work Message-ID: <CAPS9%2BSsin=hLAERsB85MYV4teD3ym97EoXN%2BUAd7NHvAvOPODQ@mail.gmail.com> In-Reply-To: <DUB109-W814B5A6943031CBE3E231EC4A10@phx.gbl> References: <DUB109-W131518687202B07CBB6F022C4A20@phx.gbl> <20120827221528.GA69174@server.rulingia.com> <DUB109-W814B5A6943031CBE3E231EC4A10@phx.gbl>
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On Tue, Aug 28, 2012 at 10:04 AM, antonin tessier <antonintessier@live.fr>wrote: > > > >despite I did: > > ># zfs set compression=gzip home/compressed > > > > Did you run that command before or after you copied the data into > > /home/compressed? > > > > How much data did you load into /home/compressed? > > > > How did you copy the data into /home/compressed? > > > > What is the result of "zfs get all home/compressed"? > > > I did it after the data was copied; > /home/compressed now contains 7.5 Gio; > > "zfs get all home/compressed" tells me "NAME PROPERTY > VALUE SOURCE > home/compressed type filesystem - > home/compressed creation Mon Aug 27 13:49 2012 - > home/compressed used 7.32G - > home/compressed available 180G - > home/compressed referenced 7.32G - > home/compressed compressratio 1.05x - > home/compressed mounted yes - > home/compressed quota none default > home/compressed reservation none default > home/compressed recordsize 128K default > home/compressed mountpoint /home/compressed default > home/compressed sharenfs off default > home/compressed checksum on default > home/compressed compression lzjb local > home/compressed atime on default > home/compressed devices on default > home/compressed exec on default > home/compressed setuid on default > home/compressed readonly off default > home/compressed jailed off default > home/compressed snapdir hidden default > home/compressed aclmode discard default > home/compressed aclinherit restricted default > home/compressed canmount on default > home/compressed xattr off temporary > home/compressed copies 1 default > home/compressed version 5 - > home/compressed utf8only off - > home/compressed normalization none - > home/compressed casesensitivity sensitive - > home/compressed vscan off default > home/compressed nbmand off default > home/compressed sharesmb off default > home/compressed refquota none default > home/compressed refreservation none default > home/compressed primarycache all default > home/compressed secondarycache all default > home/compressed usedbysnapshots 0 - > home/compressed usedbydataset 7.32G - > home/compressed usedbychildren 0 - > home/compressed usedbyrefreservation 0 - > home/compressed logbias latency default > home/compressed dedup off default > home/compressed mlslabel - > home/compressed sync standard default > home/compressed refcompressratio 1.05x - > home/compressed written 7.32G -" > > Ending, if I change gzip into lzjb, will my data by compress this new way ? > > Thank you. > > Only data added after you set compression=on or change compression=gzip|lzjb will be compressed. Best regards Andreas
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