ZPOOL import failure due to multiple pool IDs?
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I have trouble with a ZFS pool after interrupted scrubbing on FreeBSD
10-CURREN (10.0-CURRENT #1 r253579: Tue Jul 23 20:31:59 CEST 2013
amd64).
After I shut down the box while the ZFS pool in question was still in
scrubbing, after a reboot the system marked that pool as defect. I
tried to clean the reported data corruption by adding the -F flag to
the import, but surprisingly, the pool has ambigious IDs confusing the
system (and me):
pool: BACKUP00
id: 257822624560506537
state: FAULTED
status: The pool metadata is corrupted.
action: The pool cannot be imported due to damaged devices or data.
The pool may be active on another system, but can be imported
using the '-f' flag.
see: http://illumos.org/msg/ZFS-8000-72
config:
BACKUP00 FAULTED corrupted data
ada3p1 ONLINE
pool: BACKUP00
id: 9337833315545958689
state: FAULTED
status: One or more devices contains corrupted data.
action: The pool cannot be imported due to damaged devices or data.
The pool may be active on another system, but can be imported
using the '-f' flag.
see: http://illumos.org/msg/ZFS-8000-5E
config:
BACKUP00 FAULTED corrupted data
8544670861382329237 UNAVAIL corrupted data
I do not know what happens here. The pool has been upgraded twice as
far as I remember, since the disk/device is used as a compressed backup
device and only used for that purpose. But for a couple of time now
with FreeBSD 10, it starts to fail when the scrubbing is interrupted by
a shutdown. I remember that scrubbing of pools sesumed after the next
reboot - but I realised that this seems to be a problem now for some
reason on FreeBSD 10. I had a situation like this earlier this year
with the same device - amongst another pool after scrubbing didn't
resumed as expected.
The import of the pool above in question works by using the very first
id: id: 257822624560506537.
But what is with the other IDs? What are those IDs and labels doing
here? Is it possible that ZFS has some bugs revealing older
labels/GUIDs of the device from a earlier configuration than the last
one configured and prepared for?=20
How can I get rid of those fake/phantom id?
Rgards,
Oliver
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