John,

A lot of SMS sites provide for multi-volume allocation in the default
DATACLAS, but 40 would be unusually high Unit Count to provide all datasets.


SMS has not changed the way JCL works however, so if you need a multi-volume
dataset with more volumes than the DATACLAS provides, you just use your own
value in the Unit Count parm. I'd suggest omitting the ESOTERIC this may be
restricted to a subset of available volumes in the SMS STORGRUP. The
following JCL is what I would suggest using:

//SYSREC01 DD DSN=IBMUSER.NDSP.DATA,
//      DISP=(NEW,CATLG,DELETE),
//      SPACE=(CYL,(2000,1800),RLSE),
//      UNIT=(,40)

This is not an SMS problem. DATACLAS provides some defaults that reduce JCL
coding, but if you want something other than the DATACLAS values there is
nothing stopping you overriding the JCL.

Ron

> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] On
Behalf Of
> Vernooij, CP - SPLXM
> Sent: Tuesday, June 23, 2009 5:21 AM
> To: [email protected]
> Subject: Re: [IBM-MAIN] SMS Dataset Allocation Problem
> 
> Yes, that is the SMS technical side.
> I understood that John is an ignorant SMS user, so for him there are
> only the defined/published dataclasses to select from.
> 
> Kees.
> 

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