Date: Tue, 7 Oct 2008 03:30:09 -0700 From: Jeremy Chadwick <koitsu@FreeBSD.org> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: lhmwzy <lhmwzy@gmail.com>, freebsd-stable@freebsd.org Subject: Re: zfs quota question Message-ID: <20081007102959.GA46215@icarus.home.lan> In-Reply-To: <20081007101755.GB3464@garage.freebsd.pl> References: <78fb9d960810070232u3f35010dv510dfa0fb2285568@mail.gmail.com> <20081007095437.GA44716@icarus.home.lan> <20081007101755.GB3464@garage.freebsd.pl>
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On Tue, Oct 07, 2008 at 12:17:55PM +0200, Pawel Jakub Dawidek wrote: > On Tue, Oct 07, 2008 at 02:54:37AM -0700, Jeremy Chadwick wrote: > > On Tue, Oct 07, 2008 at 05:32:43PM +0800, lhmwzy wrote: > > > I create a zfs volume pool/lhm and give it quota 1M use "zfs set > > > quota=1m pool/lhm" > > > > > > #zfs get all pool/lhm > > > zfs get all pool/lhm > > > [ttyp0][5:22:12pm] > > > NAME PROPERTY VALUE SOURCE > > > pool/lhm type filesystem - > > > pool/lhm creation Tue Oct 7 17:14 2008 - > > > pool/lhm used 1.00M - > > > pool/lhm available 0 - > > > pool/lhm referenced 1.00M - > > > pool/lhm compressratio 7.25x - > > Turn compression off and retry. Yep, that's the key! # zfs set quota=4g storage/home # zfs set compression=off storage # zfs get compression,quota,mountpoint NAME PROPERTY VALUE SOURCE storage compression off local storage quota none default storage mountpoint /storage default storage/home compression off inherited from storage storage/home quota 4G local storage/home mountpoint /home local # dd if=/dev/zero of=/home/filler bs=1g count=8 dd: /home/filler: Disc quota exceeded 4+0 records in 3+1 records out 3306553344 bytes transferred in 62.566567 secs (52848566 bytes/sec) # df -h /home Filesystem Size Used Avail Capacity Mounted on storage/home 4.0G 4.0G 0B 100% /home I had no idea compression could cause this. A useful feature, but obviously can result in misleading results... :-) Thanks as usual, Pawel! -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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