How to clear a removed single-disk pool from being listed by zpool import?

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How to clear a removed single-disk pool from being listed by zpool import?

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Operating Systems Solaris How to clear a removed single-disk pool from being listed by zpool import?

08-11-2018

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How to clear a removed single-disk pool from being listed by zpool import?

On an OmniOS server, I removed a single-disk pool I was using for testing.

Now, when I run zpool import it will show it as FAULTED, since that single disk not available anymore.

Code:

# zpool import
   pool: fido
     id: 7452075738474086658
  state: FAULTED
 status: The pool was last accessed by another system.
 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-EY
 config:

        fido                     FAULTED  corrupted data
          c1t0025385971B16535d0  UNAVAIL  corrupted data

Since it is not there, I cannot destroy the pool.

I tried deleting /etc/zfs/zpool.cache and rebooting, with no success, the entry is still there.

I also cannot re-attach the disk in order to destroy the pool, since it is not physically in my possession anymore.

How can I clear that entry from being considered by zpool import?

I read zpool man page, and Solaris pages, like this one, but I could not find any hint.

Last edited by priyadarshan; 08-11-2018 at 01:59 PM.. Reason: Add details

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08-11-2018

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Use this to destroy the pool

Code:

# zpool destroy <pool name>

If it objects to that (and you really mean to nuke it) use the force option

Code:

# zpool destroy -f <pool name>

Does that not work?

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Thank you, I did try that,

Code:

 # zpool destroy -f fido
cannot open 'fido': no such pool

But the issue is that pool is not among the ones available.

Code:

 # zpool list -v
 NAME                        SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
rpool                       476G   214G   262G        -         -     0%    44%  1.00x  ONLINE  -
   c1t0025385971B16535d0     476G   214G   262G        -         -     0%    44%

It is not even importable, as listed in previous post:

Code:

The pool cannot be imported due to damaged devices or data.

because the physical device is not connected anymore.

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Yes, so the 'pool' is gone.

So what are you trying to do??? Use that disk for something else and it won't let you??

I'm not understanding the problem.

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I would like to remove the "fido" entry when running zpool import .

Right now the command lists the missing "phantasm" pool, and I can't remove that stray entry, even by deleting zpool.cache.

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Can you -f (force) the import, and then -f (force) destroy?

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Unfortunately I can't re-attach the device and force the import, because the device is long gone. It was a single-dev pool, too.

Last edited by priyadarshan; 08-11-2018 at 03:39 PM..

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