zfs list -r reporting on Vbox made drives

Discussion:

Harry Putnam

2014-03-27 00:44:19 UTC

Running oi -b 151_a8 as guest on win7 64bit host.

I'm just noticing something that may be totally normal but wondered if
anyone could comment on it.

I've created a pair of dynamic sata drives thru the Vbox interface.
Released them (thru vbox). Moved them to a directory on an external
seagate drive attached to windows host by usb3. Then add them (thru
Vbox) to the oi vm.

When booted, oi recognizes them just fine and I created a mirrored
zpool of them.

Created z fs on it.

Now I've been pooring data into it for a few hours.

Just happened to take a look with:

zfs list -r p4

NAME USED AVAIL REFER MOUNTPOINT
p4 231G 380G 32K /p4
p4/extDr-bkup 231G 380G 31K /p4/extDr-bkup
p4/extDr-bkup/extDr-ImagesMusic 231G 380G 231G /extDr-bkup/[...]

I notice that the Avail amount is listed as 380, but the drives were
created as 622.32 GB in Vbox.

Does this have to do with the 'dynamic' aspect of the vbox discs or
should I be seeing a much larger value in the 'AVAIL' column?

Ian Collins

2014-03-27 01:14:47 UTC

Permalink

Post by Harry Putnam
Running oi -b 151_a8 as guest on win7 64bit host.
I'm just noticing something that may be totally normal but wondered if
anyone could comment on it.
I've created a pair of dynamic sata drives thru the Vbox interface.
Released them (thru vbox). Moved them to a directory on an external
seagate drive attached to windows host by usb3. Then add them (thru
Vbox) to the oi vm.
When booted, oi recognizes them just fine and I created a mirrored
zpool of them.
Created z fs on it.
Now I've been pooring data into it for a few hours.
zfs list -r p4
NAME USED AVAIL REFER MOUNTPOINT
p4 231G 380G 32K /p4
p4/extDr-bkup 231G 380G 31K /p4/extDr-bkup
p4/extDr-bkup/extDr-ImagesMusic 231G 380G 231G /extDr-bkup/[...]
I notice that the Avail amount is listed as 380, but the drives were
created as 622.32 GB in Vbox.
Does this have to do with the 'dynamic' aspect of the vbox discs or
should I be seeing a much larger value in the 'AVAIL' column?

GiB vs GB maybe?

--
Ian.

Matthew Ahrens

2014-03-27 01:34:10 UTC

Permalink

USED + AVAIL = 610GB, which is reasonably close to 622GB. What were you
expecting?

--matt

Post by Harry Putnam
Does this have to do with the 'dynamic' aspect of the vbox discs or
should I be seeing a much larger value in the 'AVAIL' column?
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Harry Putnam

2014-03-27 03:32:18 UTC

Permalink

Post by Matthew Ahrens

Post by Harry Putnam
NAME USED AVAIL REFER MOUNTPOINT
p4 231G 380G 32K /p4
p4/extDr-bkup 231G 380G 31K /p4/extDr-bkup
p4/extDr-bkup/extDr-ImagesMusic 231G 380G 231G /extDr-bkup/[...]
I notice that the Avail amount is listed as 380, but the drives were
created as 622.32 GB in Vbox.

USED + AVAIL = 610GB, which is reasonably close to 622GB. What were you
expecting?

Now I'm expecting to understand someday, why I asked such a stupid
question..

I think I've been up to long..

Sorry for the line noise folks!