> DD> To reduce the chance of it affecting the integrety of the filesystem,
> DD> there are multiple copies of the UB written, each with a checksum and a
> DD> generation number.  When starting up a pool, the oldest generation copy
> DD> that checks properly will be used.  If the import can't find any valid
> DD> UB, then it's not going to have access to any data.  Think of a UFS
> DD> filesystem where all copies of the superblock are corrupt.
> 
> Actually the latest UB, not the oldest.

My *other* oldest...  yeah.

-- 
Darren Dunham                                           [EMAIL PROTECTED]
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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