LUN instantiation question

Peter Johansson PJohansson at
Mon Mar 4 16:18:58 PST 2002

* From the T10 Reflector (t10 at, posted by:
* Peter Johansson <PJohansson at>
At 09:18 PM 3/4/2002 +0000, Ricia and Michael Banther wrote:

>Does SAM-2 support dynamic instantiation of logical units?  I've searched 
>the document, and it doesn't appear to disallow dynamic instantiation or 
>require static instantiation.  However it doesn't appear to specifically 
>support dynamic instantiation either.

My two cents worth:

SAM-2 is silent on the matter of "dynamic logical units" and doesn't really 
comprehend what such a thing would be. To wit, if an initiator has 
discovered, by some method, that LU x exists, subsequently addresses a 
command to LU x that reveals the existence of LU q and then starts to 
signal commands to LU q, the fact that LU q might or might not have existed 
five minutes ago is of no concern of SAM-2.


Peter Johansson

Congruent Software, Inc.
98 Colorado Avenue
Berkeley, CA  94707

(510) 527-3926
(510) 527-3856 FAX

PJohansson at

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