Date: Wed, 10 Aug 2011 11:39:32 +0200 From: "Ronald Klop" <ronald-freebsd8@klop.yi.org> To: freebsd-fs@freebsd.org Subject: Re: Free space of 'zfs list' vs 'zpool list' Message-ID: <op.vzzrr6kh8527sy@212-182-167-131.ip.telfort.nl> In-Reply-To: <CAHT-BTQbrCT1dGtSXb21GTp9xyW6Z8JwfUtMb_TJvDptDbL27w@mail.gmail.com> References: <CAHT-BTQbrCT1dGtSXb21GTp9xyW6Z8JwfUtMb_TJvDptDbL27w@mail.gmail.com>
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On Tue, 09 Aug 2011 15:34:00 +0200, Ludvig Strigeus <strigeus@gmail.com> = =20 wrote: > I use zfs as root file system in a raidz1 configuration with 4x1.5TB =20 > disks. > zpool list says 150G available while zfs list says 47.1GB available. I = do > not use any reservations but compression is enabled. > > Due to the raidz with 4 disks, I would expect zfs list to say 150GB * =20 > 75% =3D > 112.50GB free, not 47.1GB. Can someone explain where the 65GB have gone= ? > > uname -a: > FreeBSD ludde.dyndns.org 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17 > 02:41:51 UTC 2011 =20 > root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC > amd64 > > zpool list: > NAME SIZE USED AVAIL CAP HEALTH ALTROOT > tank 5.44T 5.29T 150G 97% ONLINE - > > zfs list: > NAME USED AVAIL REFER MOUNTPOINT > tank 3.96T 47.1G 28.4K legacy > tank/data 3.95T 47.1G 3.95T /data > ... other file systems omitted ... > > zfs list -t snapshot: > NAME USED AVAIL REFER MOUNTPOINT > tank/data@2011-08-05 385M - 3.60T - > > zpool status: > NAME STATE READ = =20 > WRITE > CKSUM > tank ONLINE =20 > 0 0 > 0 > raidz1 ONLINE =20 > 0 0 > 0 > gptid/da8c85e1-f9fa-11de-a19c-001731eee65f ONLINE =20 > 0 0 > 0 > gptid/db86c6a9-f9fa-11de-a19c-001731eee65f ONLINE =20 > 0 0 > 0 > gptid/dc4efa95-f9fa-11de-a19c-001731eee65f ONLINE =20 > 0 0 > 0 > gptid/dcd40f4a-f9fa-11de-a19c-001731eee65f ONLINE =20 > 0 0 > 0 > > Thanks, > Ludde > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" There is more overhead than one disk for raidz1. There is also metadata =20 for the filesystem. 65GB of 3.5TB isn't that much. It is like 0.5%. It is time to delete some files or add another disk. Ronald.
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