On 12/18/14 08:37, Adam Vande More wrote:
On Thu, Dec 18, 2014 at 9:29 AM, Alan Somers <asom...@freebsd.org> wrote:
On Wed, Dec 17, 2014 at 6:54 PM, Russell L. Carter <rcar...@pinyon.org>
wrote:
On 12/17/14 18:30, Adam McDougall wrote:
On 12/17/2014 19:47, Russell L. Carter wrote:
On 12/17/14 16:07, Rick Macklem wrote:
If this is using an exported ZFS volume, it would be nice if you
could do the same test using an exported UFS file system, to see if
this is ZFS related.
It is indeed using exported ZFS filesystems, but unfortunately I have
no USF filesystems available to test.
Russell
Can you create a zvol, newfs it with ufs and export it?
Maybe. I would love to help if I can, w/o disrupting my existing
carefully planned physical disk layouts. I'm a zfs novice here, do I
need free space unallocated to existing zpools, or can I shrink an
existing pool? (assuming that zfs can transmute lead into gold, with
the right incantations). I have plenty of "free" space allocated to
existing pools that span my physical drives.
If I have to add a physical drive (that's possible, but it will be a
slow drive sitting on my shelf) then I need to wait until I get back
from holiday travels.
You don't need to screw with your pools at all. A zvol is like a
managed like a ZFS filesystem, except it's a block device. You can
create one and mount it with a command like this:
zfs create -V 8g mypool/myvol
newfs [options] /dev/mypool/myvol
mount /dev/mypool/myvol /mnt
Using a flash drive or temporary drive seems like a much more comprehensive
test as you can fully eliminate ZFS from the picture. Which is the point
of the exercise.
Ok, good suggestions, noted, and thanks! Unfortunately I'm going
to have to pick this up when I get back.
Russell
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