Re: Different sizes between zfs list and zpool list

On Wed, May 5, 2010 at 4:56 PM, Freddie Cash <[e-mail]> wrote:
> On Wed, May 5, 2010 at 8:44 AM, Tom Evans <[e-mail]> 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
> [e-mail]

Ah, that makes sense - also explains why the df output matches up
precisely with the zfs list output.

Thanks

Tom
_______________________________________________
[e-mail] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "[e-mail]"