On Sun, Nov 18, 2007 at 01:19:16AM -0800, Asim Kadav wrote:
> I'm trying to read the ZFS MOS but unable to do so. The compression
> field is set to 3 and does not change with zfs compression=off
> . Does this compression have any effect on MOS?
>
All metadata is compressed using LZJB because it t
I'm trying to read the ZFS MOS but unable to do so. The compression field is
set to 3 and does not change with zfs compression=off . Does this
compression have any effect on MOS?
I'm just reading the block pointer using the mos ptr as mentioned above.
-Asim
--
This messages posted from opensola
Thanks again Eric. Lots of food for thought here, so much head scratching I'll
get dandruff... Mark
On Wednesday 25 July 2007 20:30, Eric Schrock (Eric Schrock
) may have written:
> On Wed, Jul 25, 2007 at 08:19:07PM +0200, Mark Furner wrote:
> > Many thanks for the quick reply, Eric. ZFS is qui
Many thanks for the quick reply, Eric. ZFS is quite awesome, but also
awesomely complicated.
What did you mean with
>For *filesystems*, you can consult the per-pool history.
Is this the vdev label uberblock / MOS thing?
> It is part of the MOS (meta object set), which is the root of all
> pool
Eric Schrock wrote:
>> * "ZFS On-Disk Specification" is described as a draft, dated 22 August 2006.
>> Is there anything more recent available?
>
> Sadly, no. It could probably use some love but most of the engineers
> have been too busy to keep the document up to date with ongoing changes.
PS
Hello
I'm looking into the forensic artefacts of ZFS and came across zpool.cache
in /etc/zfs/. Can some wise person confirm my information is correct and help
me with some questions? I've had a look through the code on
src.opensolaris.org and the On Disk specs (the PDF document ZFS On-Disk
Spe
On Wed, Jul 25, 2007 at 08:19:07PM +0200, Mark Furner wrote:
> Many thanks for the quick reply, Eric. ZFS is quite awesome, but also
> awesomely complicated.
>
> What did you mean with
>
> >For *filesystems*, you can consult the per-pool history.
>
> Is this the vdev label uberblock / MOS thing
On Wed, Jul 25, 2007 at 01:11:54PM +0200, Mark Furner wrote:
>
> * ZFS has a legacy mode where mounts are handled by /etc/vfstab or a default
> mode where pools are automounted by ZFS. If you use /etc/vfstab and switch
> off the automatic mount at boot, the ZFS partitions won't be touched unless
