comment below...
Stefan Olsson wrote:
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Hello,
I have two USB-drives connected to my PC with an zpool on each, one
called TANK, the other IOMEGA. After some problems this morning I
managed to get the IOMEGA-pool to work but have less luck with the
TANK-pool. -When I run "zpool import" and would expect to get some state
of "TANK" I instead get
" pool: IOMEGA
id: 9922963935057378355
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://www.sun.com/msg/ZFS-8000-72
config:
IOMEGA FAULTED corrupted data
c4t0d0 ONLINE"
---------------
When running an zpool status I get this:
" pool: IOMEGA
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
IOMEGA ONLINE 0 0 0
c8t0d0 ONLINE 0 0 0
errors: No known data errors
pool: rpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror ONLINE 0 0 0
c6t0d0s0 ONLINE 0 0 0
c6t2d0s0 ONLINE 0 0 0"
In other words the actual IOMEGA-pool appears on a drive which is c8t0d0
and the pool is marked as OK, but then the USB-drive on C4t0d0 appears
to have an zpool called IOMEGA as well although it really contains the
TANK-pool!
ZFS maintains a cache of what pools were imported so that at boot time,
it will automatically try to re-import the pool. The file is
/etc/zfs/zpool.cache
and you can view its contents by using "zdb -C"
If the current state of affairs does not match the cache, then you can
export the pool, which will clear its entry in the cache. Then retry the
import.
-- richard
What really worries me is that zfs for some reason has started to treat
a drive which belonged to one pool as if it was belonging to another
pool. Could this happen with other non-USB drives in other configuration
scenarios such as mirrors or raidz?
I suppose anything can happen on Friday the 13th...
Cheers,
Stefan Olsson
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