ZFS filesystem not showing total size?

[xorquewasp at googlemail.com]

On 2009-06-22 21:28:26, Artem Belevich wrote:
> On Mon, Jun 22, 2009 at 5:31 PM, <xorquewasp at googlemail.com> wrote:
> > ad11: 953869MB <WDC WD1001FALS-00J7B1 05.00K05> at ata5-slave SATA300
> ..
> > ad14: 476940MB <WDC WD5001AALS-00L3B2 01.03B01> at ata7-master SATA300
> > ad16: 476940MB <WDC WD5001AALS-00L3B2 01.03B01> at ata8-master SATA300
> ..
> ># zpool create storage raidz ad11 ad14 ad16
> > I seem to have less storage than I'd expect. Is there something wrong
> > with this setup?
> 
> You've created raidz pool from 2x500G hard drives and one 1T hard
> drive. RAIDZ needs elements of the array to be of the same size, so
> you're effectively wasting half of your 1T drive (ad11). Total raw
> capacity of the pool is 476G*3 = ~ 1.36T with 2/3of it (913G) usable
> for user data -- exactly what zfs shows you.

Thanks, I was afraid of that.

I'll swap the 1tb disk for a 500gb today. I was only planning to get
1tb of storage but found that I had a spare 1tb disk laying around so
I put that into the array instead.

xw