Date: Thu, 20 Sep 2007 14:26:25 +0200 From: =?ISO-8859-1?Q?Johan_Str=F6m?= <johan@stromnet.se> To: =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS (and quota) Message-ID: <93AE0860-0FF6-47C7-ACFC-D882D13EC7DB@stromnet.se> In-Reply-To: <86y7f1ofgo.fsf@ds4.des.no> References: <BE54DA53-0353-4EB3-B232-6A7193522582@stromnet.se> <86y7f1ofgo.fsf@ds4.des.no>
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On Sep 20, 2007, at 11:26 , Dag-Erling Sm=F8rgrav wrote: > Johan Str=F6m <johan@stromnet.se> writes: >> I was playing around with ZFS a bit and tried out the quota >> features. While doing this I noticed that it doesnt seem like you get >> a "disk full" notice the same way as you do on a "normal" (UFS) >> filesystem. Instead of aborting the operation with "No space left on >> device" it just continued: >> [...] >> [root@devbox /tank]# zfs create tank/set2 >> [root@devbox /tank/set2]# zfs set quota=3D10M tank/set2 >> [root@devbox /tank/set2]# zfs get quota tank/set2 >> NAME PROPERTY VALUE SOURCE >> tank/set2 quota 10M local >> [root@devbox /tank/set2]# dd if=3D/dev/urandom of=3Dtest >> ^C >> 18563+0 records in >> 18562+0 records out >> 9503744 bytes transferred in 199.564353 secs (47622 bytes/sec) >> [root@devbox /tank/set2]# zfs list tank/set2 >> NAME USED AVAIL REFER MOUNTPOINT >> tank/set2 9.15M 870K 9.15M /tank/set2 > > See what it says under AVAIL? You killed it before it filled the =20 > disk. > [root@devbox /home/johan]# zfs list tank/set2 NAME USED AVAIL REFER MOUNTPOINT tank/set2 9.15M 870K 9.15M /tank/set2 Yes i did, but after 200 seconds one would think that 10Mbs should be =20= filled (took 2.2s on the ufs) right? :) > des@ds4 ~% sudo zfs create raid/q > des@ds4 ~% sudo zfs set quota=3D1m raid/q > des@ds4 ~% sudo dd if=3D/dev/zero of=3D/raid/q/test bs=3D65536 > dd: /raid/q/test: Disc quota exceeded > 16+0 records in > 15+0 records out > 983040 bytes transferred in 2.533990 secs (387942 bytes/sec) > des@ds4 ~% zfs list raid/q > NAME USED AVAIL REFER MOUNTPOINT > raid/q 1.03M 0 1.03M /raid/q With the bs=3D65536 parameter it works as expected, I get Disk quota =20= exceeded. Without it it just keeps on running until I interrupt it > > DES > --=20 > Dag-Erling Sm=F8rgrav - des@des.no
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