Check out CDSCB on the CBT tape.
SYNTAX -
CDSCB 'DSNAME' EXPDT(DATE) SHR VOL(VOLUME) UNIT(UNIT)
CREATE(DATE) REFDT(DATE)
DSORG(XX) RECFM(XX) LRECL(XX) BLKSIZE(XX)
ALLOC(TR/CYL/BL) SPACE(SECONDARY-AMOUNT)
PWR/PWW/NOP/RACF/NORACF
ZAP(OFFSET VERDATA REPDATA)
Regards,
John K
David Jousma of the IBM Mainframe Discussion List
<[email protected]> wrote on 08/13/2012 07:03:15 AM:
> This may be a dumb question...just can't see a solution in front of
> my nose at the moment.
>
> Say you have many PDS(not PDSE) datasets that for whatever reason
> were never allocated with secondary extents(not LLA datasets). Is
> there a tool that can change the dataset secondary allocation from 0
> to some other number easily? Don't want to have to reallocate the
datasets.
>
> I don't see that the PDS can do it, nor does it look like IDCAMS can do
it...
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