Hello Ben,

Wednesday, January 16, 2008, 5:29:57 AM, you wrote:

BR> Eric Schrock wrote:
>> There's really no way to recover from this, since we don't have device
>> removal.  However, I'm suprised that no warning was given.  There are at
>> least two things that should have happened:
>>
>> 1. zpool(1M) should have warned you that the redundancy level you were
>>    attempting did not match that of your existing pool.  This doesn't
>>    apply if you already have a mixed level of redundancy.
>>
>> 2. zpool(1M) should have warned you that the device was in use as an
>>    active spare and not let you continue.
>>
>> What bits were you running?
>>   

BR> snv_78, however the pool was created on snv_43 and hasn't yet been 
BR> upgraded.  Though, programatically, I can't see why there would be a 
BR> difference in the way 'zpool' would handle the check.

BR> The big question is, if I'm stuck like the permanently, whats the 
BR> potential risk?

BR> Could I potentially just fail that drive and leave it in a failed state?

If some data has been written since you did it you have a "chance" it
was stripped between your raid-z pools and this drive - so if you fail
a drive you won't have an access to some data. Metadata should be fine
but then after a reboot or export you won't be able to import a pool.

If you can't re-create a pool (+backup&restore your data) I would
recommend to wait for device removal in zfs and in a mean time I would
attach another drive to it so you've got mirrored configuration and
remove them once there's a device removal. Since you're already
working on nevada you probably could adopt new bits quickly.

The only question is - when device removal is going to be integrated -
last time someone mentioned it here it was supposed to be by the end
of last year...

-- 
Best regards,
 Robert Milkowski                           mailto:[EMAIL PROTECTED]
                                       http://milek.blogspot.com

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