Date: Wed, 5 May 2010 17:20:06 +0100 From: Tom Evans <tevans.uk@googlemail.com> To: Freddie Cash <fjwcash@gmail.com> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: Different sizes between zfs list and zpool list Message-ID: <AANLkTilN2XiX7ZsqcXIL-UfSCZtdloLkaW5r9_0RYsLV@mail.gmail.com> In-Reply-To: <l2jb269bc571005050856w86b6f13as54a8778c28dd9099@mail.gmail.com> References: <AANLkTim-yHHl9Neeb40gD3W333foqEIcGYCY2EaorvKg@mail.gmail.com> <l2jb269bc571005050856w86b6f13as54a8778c28dd9099@mail.gmail.com>
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On Wed, May 5, 2010 at 4:56 PM, Freddie Cash <fjwcash@gmail.com> wrote: > On Wed, May 5, 2010 at 8:44 AM, Tom Evans <tevans.uk@googlemail.com> wrot= e: > >> When looking at the size of a pool, this information can be got from >> both zpool list and zfs list: >> >> > $ zfs list >> NAME =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 USED =C2=A0AVAIL =C2=A0REFER =C2=A0MOUNTPOINT >> tank =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A05.69T =C2=A0 982G =C2=A036.5K =C2=A0/tank >> >> > $ zpool list >> NAME =C2=A0 SIZE =C2=A0 USED =C2=A0AVAIL =C2=A0 =C2=A0CAP =C2=A0HEALTH = =C2=A0ALTROOT >> tank =C2=A08.14T =C2=A06.86T =C2=A01.28T =C2=A0 =C2=A084% =C2=A0ONLINE = =C2=A0- >> >> Why the different sizes? >> The pool is a raidz of 6 x 1.5 TB drives. >> > > zpool lists the raw storage available to the pool. =C2=A0Every single bit= of > every single drive is listed here. =C2=A0This will be 6 x 1 TB. > > zfs lists only the amount of storage available to be used, after all > redundancy is taken into account. =C2=A0This will be 5 x 1 TB. > > -- > Freddie Cash > fjwcash@gmail.com Ah, that makes sense - also explains why the df output matches up precisely with the zfs list output. Thanks Tom
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