On Sat, Oct 11, 2008 at 03:19:49AM +0300, Marcus Sundman wrote:
> I've used format's "volname" command to give labels to my drives
> according to their physical location. I did quite a lot of work
> labeling all my drives (I couldn't figure out which controller got
> which numbers so I had to disconnect drives one by one, and they're not
> hotpluggable => lot's of reboots). However, when I created a zpool of
> the drives all the labels vanished!

If they were SMI labels before, then ZFS probably switched them to
EFI/GPT labels, and the volname dropped out.

> Since I didn't write them down
> elsewhere I have to do it all over. Except that now it won't let me:
> > format> volname
> > Unable to get current partition map.
> > Cannot label disk while its partitions are in use as described.
> > format>

"as described"?  Did format tell you anything when you selected the disk
other than "/dev/dsk/xxxxs0 is part of active ZFS pool blah..."?

> I get the same error message even if the device is offline (i.e.,
> "zpool offline <pool> <device>").
> 
> Am I doing something wrong, or is format just giving me the finger for
> no reason?

Now that I don't know.  I'm having no problems adding a volname to a ZFS
disk (EFI label), even with the pool online.

format> volname
Enter 8-character volume name (remember quotes)[""]:foo
Ready to label disk, continue? y

format>

-- 
Darren
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