ZFS: invalid label -- what is expected?

[Alexander Leidinger]

Hi,

I'm in the uncomfortable situation that I have a ZFS which emits the  
message "label missing or invalid" for one of the 3 disks. As this is  
neither a mirror nor a raidz, the whole pool is not accessible. This  
pool just served as a backup for some data which had to be transferred  
from a graid3 to a raidz. The graid3 does not exist anymore, and the  
raidz is not populated yet...

As I want to have the data back from the interrim-backup pool (several  
jails, the FreeBSD CVS, ... so more or less nothing important, but  
time consuming to get back to the previous state by  
reinstalling/downloading/...), I would like to know where this label  
zfs is complaining about is supposed to reside, and how is it suppsoed  
to look like? I would like to give a repair a try (giving zfs the  
label it expects and hoping it is able to recover at least most of the  
data (on this pool I had the property copies=2)).

So anybody out there who can give me some information I need to do  
this, or at least knows some places in the zfs source I should have a  
look at? Please CC me, as I'm not subscribed to freebsd-fs at .

Bye,
Alexander.

-- 
Automobile, n.:
	A four-wheeled vehicle that runs up hills and down
	pedestrians.

http://www.Leidinger.net    Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org       netchild @ FreeBSD.org  : PGP ID = 72077137