LUN

from The Free On-line Dictionary of Computing (8 July 2008)
Logical Unit Number
LUN

   <storage> (LUN) A 3-bit identifier used on a {SCSI} bus to
   distinguish between up to eight devices ({logical units}) with
   the same {SCSI ID}.

   (1999-02-11)
    
from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)
LUN
       Logical Unit Number (SCSI)
       
    

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