re-adding a replacement into a pool of mirrors

[Randy Bush]

>>>>> It might be worth zeroing the whole disk with dd if=/dev/zero
>>>>> of=/dev/da1s3 bs=64k, and then see if you can re-attach.
>>>> went single luser, zapped the drive, took a nap, then
>>>>    zpool attach tank da0s3 da1s3
>>>> worked.  so geom did have it!
>>> I'm not sure geom had it more than the slice had a zfs label on it and as
>>> a foot-shooting precaution it did not want to let you add a device
>>> from another pool to the existing one. Just a guess, though. Was the
>>> replacement drive brand new?
>> yep, brand new.
> Perhaps it was pre-formatted as fat32?

well, at the same time i replaced the bad spindle, i put a spare in.
the spare came from the same source.  so how would i look to see who's
claws are gripping it?

randy