Eric Schrock пишет:
> These are the symptoms of a shrinking device in a RAID-Z pool.  You can
> try to run the attached script during the import to see if this the
> case.  There's a bug filed on this, but I don't have it handy.

it's

6753869 labeling/shrinking a disk in raid-z vdev makes pool un-importable

victor

> 
> - Eric
> 
> On Sun, Oct 26, 2008 at 05:18:25PM -0700, Terry Heatlie wrote:
>> Folks,
>> I have a zpool with a raidz2 configuration which I've been switching between
>> two machines - an old one with a hardware problem and a new one, which
>> doesn't have hardware issues, but has a different configuration .   I've
>> been trying to import the pool on the new machine, so I can back up the
>> data, because the old (broken) machine resets (I don't think it's panicking,
>> because there are no logged messages) every time I try to tar off the data
>> from the ZFS.
>>
>>  Unfortunately, the first time I tried to import the pool on the new
>> machine, I didn't have the right five drives in it, so it didn't work.
>>  After I figured out that I was confused about which was the boot drive, I
>> did get the five drives into the new machine and asked it to import the
>> pool.  It said that the pool could not be imported due to damaged devices or
>> data.   Which is slightly odd, since it had been mounting the pool fine on
>> the broken machine before.
>>
>> I then moved the drives back into the old machine, figuring I'd at least
>> copy some small stuff onto a USB stick (it only dies reading large files,
>> apparently), but now the old machine can't mount the pool either, and asking
>> it to import gives the same message.   It shows all five drives online, but
>> says the pool is UNAVAIL due to insufficient replicas, and the  raidz2 is
>> UNAVAIL due to corrupted data.
>>
>> Must I resign myself to having lost this pool due to the hardware problems
>> I've had, and restore such backups as I have on the new machine, or is there
>> something that can be done to get the pool back online at least in degraded
>> mode?
>>
>> Thanks in advance,
>>
>> --Terry.

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