zfs discuss - Apr 2010 - ZFS-8000-8A: Able to go back to normal without destroying whole pool?

Hi all,

on Friday night two disk in one raidz2 vdev decided to die within a couple of 
minutes. Swapping drives and resilvering one at a time worked quite ok, 
however, now I''m faced with a nasty problem:

s07:~# zpool status -v
  pool: atlashome      
 state: ONLINE         
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.                    
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.                                        
   see: http://www.sun.com/msg/ZFS-8000-8A                              
 scrub: resilver completed with 1 errors on Sat Apr 10 10:23:14 2010    

[...]
errors: Permanent errors have been detected in the following files:

        atlashome/BACKUP/userA:<0x962de4>

The web page is pretty generic (IMHO), I would like to restore this file from 
backup (or actually its origin) or simply unlink it permanently. But how do I 
find this blob and how to fix it without replaying the full pool (Is it really 
a pool issue or the file system).

TIA for any advice

Cheers

Carsten