"George Dranes" <[EMAIL PROTECTED]> wrote in message
news:<[EMAIL PROTECTED]>...
> I'm just curious if there are any recommendations on data and index
cisizes
> for a general volcat.  When we first set ours up, we used the sample job
in
> the IBM Magstar Tape Redbook which just takes the system defaults (in
this
> case on a non-sms managed volume).  I did a listcat against our volcat
and
> the data cisize is 20480 with AVGLRECL=4086 and the index cisize is 512.
> The catalog is working fine and is extremely small ~500 volsers defined.
> Would it even be worth my while to mess with this??  Thanks for the help.

We recommend a 4K CISIZE for Catalogs.  If you are running z/OS 1.6 you can
run an EXAMINE INDEXTEST against the catalog and it will tell you what you
need for an index CISIZE.

Thanks,
Mark Thomen
Catalog/IDCAMS/VSAM Development

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