Hello Marna,
I use:-
Rules for re-sizing datasets:-
Target volume datasets to be allocated in CYLINDERS
Distribution volume datasets to be allocated in TRACKS
LINKLIST datasets:-
o Primary allocation = 3 times Used space
o Secondary allocation = 0
o PDS Directory Blocks = 1.5 times used directory blocks
SPECIAL datasets:-
o Primary allocation = 1.4 times Used space
o Secondary allocation = 0
o PDS Directory Blocks = 1.5 times used directory blocks
PROCLIB datasets:-
o Primary allocation = 3 times Used space
o Secondary allocation = 0
o PDS Directory Blocks = 2.0 times used directory blocks
OTHER datasets:-
o Primary allocation = 1.2 times Used space
o Secondary allocation = 0.5 times Used space
o PDS Directory Blocks = 2.0 times used directory blocks
All calculations to be performed in TRACKS, rounded up.
Conversion TRACK to CYLINDER to be rounded up.
Regards
Bruce
On Tue, 20 Jul 2021 12:47:54 -0500, Marna WALLE <[email protected]> wrote:
<snip>
>
>Now...I would like to look at the data set size problem in a larger context -
>in order to understand where to solve this problem. More than ever, we have
>been shipping Continuous Delivery PTFs. Many of these PTFs are quite large,
>and occur over the life of a release. This can put quite a lot of pressure on
>the size of the target and DLIB data sets being able to accommodate these
>updates for every service install episode. I am wondering, if it might be of
>better use to have the capability of accommodating the need for more space in
>a more ongoing manner? Meaning, installing a release for a first time - even
>with enlarging the data sets with some predictive percentage (50%, 100%,
>200%?) - still doesn't completely help with running out of space in some data
>sets or even volumes continually, and could result in some data sets being
>overly and unnecessarily large. Would it be better if z/OS itself was able to
>assist better when the problem occurred in a targeted and timely fashion? Do
>you feel that if z/OSMF Software Management provided this ability to one-time
>increase the size of allocated target and DLIBs, that would conclusively solve
>your space problems for these data sets?
>
>-Marna WALLE
>z/OS System Install and Upgrade
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