zfs discuss - Jan 2010 - Is the disk a member of a zpool?

I was curious as to if it''s possible to know if a disk device (from the
SAN) is a member of any zpool.  The disks are shared to several servers, and the
zpool is exported/imported between servers.  I am writing a script to list all
the disks available from the SAN with some misc. information, and it would be
nice to list which pool the disk is a part of, and which disks are free to
quickly find new disks when they are shared out from the san...

It would not be possible to get this from a "zpool status" since all
the disks will not be present on the machine, some may be in use in a zpool
mounted on another machine.  I have noticed though, that if you do a
"format <disk device>" on a disk, it will tell you if this disk
is a member of a ZFS pool, and the name of the pool in question.  This much mean
that this information is stored on the disk somehow, and the quetion is: Is it
possible to get this information trough a command in a script?
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The on Disk Layout is shown here: 
http://hub.opensolaris.org/bin/download/Community+Group+zfs/docs/ondiskformat0822.pdf

You can use the name value pairs in the vdev label. ( I guess). Unfortunately I
do not know any scripts.
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Lutz Schumann wrote:
> The on Disk Layout is shown here: 
>
http://hub.opensolaris.org/bin/download/Community+Group+zfs/docs/ondiskformat0822.pdf
> 
> You can use the name value pairs in the vdev label. ( I guess).
Unfortunately I do not know any scripts.
you can try

zdb -l /dev/rdsk/cXtYdZs0

Thanks for the tip both of you.  The zdb approach seems viable.
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