RE: SMS Allocations

Thanks Bob. It looks like for a normal dataset and normal SMS rules the
system will select a volume where the primary allocation can be gotten
within 5 extents, and that is the way it appears to be working.

Tom Kelman
Commerce Bank of Kansas City
(816) 760-7632

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@xxxxxxxxxxxx
Behalf Of Richards.Bob
Sent: Thursday, August 30, 2007 1:46 PM
To: IBM-MAIN@xxxxxxxxxxx
Subject: Re: SMS Allocations

Tom,

For volume selection criteria, see page 151 at the following link:

http://publibz.boulder.ibm.com/epubs/pdf/dgt2s251.pdf

It is the 1.8 version of the DFSMS Storage Administration Reference.

Bob Richards


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@xxxxxxxxxxxx
Behalf Of Kelman, Tom
Sent: Thursday, August 30, 2007 2:04 PM
To: IBM-MAIN@xxxxxxxxxxx
Subject: SMS Allocations

How does SMS determine the volume for the first extent of a new
allocation? I thought it would first try to find for a volume in the
pool where it could get the first allocation amount in one extent.
However, based on what I've seen in trying to allocate a dataset
that's
not the case. It just seems to pick a volume out of the pool at
random.




Tom Kelman

Commerce Bank of Kansas City

(816) 760-7632



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Relevant Pages

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  • RE: SMS Allocations
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    (bit.listserv.ibm-main)