Thanks for the replies.
These will be for new data sets - delete and defines on a daily basis. Nine
data classes needs to be created, each one with its own allocation size. In the
ACS routines I would then need to code 9 FILTER LISTS which would include all
the data sets with common allocation attributes (in this case, the SPACE AVGREC
where the PRIMARY and SECONDARY space allocation will the same for all data
sets under a particular filter list) eg.
FILTLIST GZTINYTINY INCLUDE (
DNGG*.**.AID000.**.RR**,
DNGG*.**.ACBANK.**.RR**
)
FILTLIST GZSMALLSMALL (
DNGG*.**.ANFSYS.**.RR**,
DNGG*.**.ATDEND.**.RR**
)
IF (&DSN EQ &GZTINYTINY) THEN
DO
SET &DATACLAS='@TINYTINY'
EXIT CODE(0)
END
IF (&DSN EQ &GZSMALLSMALL) THEN
DO
SET &DATACLAS='@SMALLSMALL'
EXIT CODE(0)
END
This is only an example of what is needed to be coded, except that the
FILTLISTS would contain up to thousands of these data sets...
I hope this makes sense now.
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of retired mainframer
Sent: 29 March 2016 07:31 PM
To: [email protected]
Subject: Re: Dataclases according to data set sizes
Are you talking about new data sets or existing ones? What do you mean by data
sets being grouped? What data class attributes would you like to be dependent
on the size of the data set.
The ALTER command cannot change the data class of an existing data set.
Even if it is possible with another utility, changing the data class would have
no effect on the other data set attributes stored in the catalog and VVDS.
What would you hope to accomplish?
The data class ACS routine has access to the &SIZE and &MAXSIZE read-only
variables. You can use them as part of the decision process for assigning a
data class to a new data set. The management class and storage class ACS
routines would have access to this decision and could use that when making
their assignments. But those routines would also have access to the variables
and could use them directly.
What is your real intent that you think different data classes will satisfy?
> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]]
> On Behalf Of Buckton, T. (Theo)
> Sent: Tuesday, March 29, 2016 7:04 AM
> To: [email protected]
> Subject: Dataclases according to data set sizes
>
> Hi,
>
> I have thousands of VSAM RR data sets that are grouped according to
> their
sizes, which
> comes to about 9 groups or data classes. It is not too much work to
> create
the 9 data classes,
> but to code these thousands of data sets according to NODE3 in the ACS
routines seems a
> bit too hectic. Is there perhaps a smarter way to do this?
>
> Note: We are rolling out z/OS 2.2 which I am studying for any
> enhancements
related to this
> query.
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions, send email to
[email protected] with the message: INFO IBM-MAIN
********************
Nedbank Limited Reg No 1951/000009/06. The following link displays
the names of the Nedbank Board of Directors and Company Secretary.
[ http://www.nedbank.co.za/terms/DirectorsNedbank.htm ]
This email is confidential and is intended for the addressee only.
The following link will take you to Nedbank's legal notice.
[ http://www.nedbank.co.za/terms/EmailDisclaimer.htm ]
********************
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
