It's actually VOLUME COUNT in the DATACLAS definition. From the (1.12) HELP
panel:
Use the VOLUME COUNT field to specify the maximum number of volumes you
expect to use to store a data set in this Data Class.
Possible values:
1 to 59 or blank (DASD)
1 to 255 or blank (Tape)
For example, to reserve five volumes per data set, specify:
Volume Count . . . . . . 5 (1 to 255 or blank)
End users can override the Data Class VOLUME COUNT attribute with the
JCL DD statement, TSO ALLOCATE command, or a similar utility.
HTH,
Greg Shirey
Ben E. Keith Company
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of DEBERT Jean-Louis
Sent: Monday, November 12, 2012 3:59 AM
To: [email protected]
Subject: Re: multi-volume SMS file allocation
<snip>
It might be due, of course, to my misunderstanding your advice. For that
matter, where do you see any "unit count" parameter in the DATACLAS ??? I
don't see that either in my prod system (Z/OS 1.11) or the test system LPAR
(Z/OS 1.13) ...
<snip>
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