There used to be an issue with below the line control blocks when having lots of eligible volumes that were not being used. Lots of vsam + lots of eligible volumes on the vsam definition leads to more storage being chewed up.
Since i am experiencing a memory fault that seems unlikely to swap in, I will hope that this jogs someone else's memory Rob Schramm On Mon, Feb 18, 2019, 12:00 PM John McKown <[email protected] wrote: > On Mon, Feb 18, 2019 at 10:57 AM esmie moo < > [email protected]> wrote: > > > Yes the dsn was reallocated. I tried out Dynamic Volume Count (Vroom > > had mentioned it) and I was able successfully run the job. It allocated > 37 > > vols.I am curious to try out your recommendation to use the ALTER. I > > assume I have to issued the command while the job is executing because if > > the job abends the dsn is deleted. Could you please confirm my > > understanding? > > > > Sorry, I didn't realise that the DSN was deleted at job end. The ALTER > won't help while the job is in execution. I sometimes use it for CICS > datasets, but CEMT SET CLOSE , do the ALTER, then CEMT SET OPEN. The > dataset must be closed and reopened to pick up the catalog entry changes. > > > > > Thanks. > > On Monday, February 18, 2019, 9:24:28 a.m. EST, John McKown < > > [email protected]> wrote: > > > > On Mon, Feb 18, 2019 at 8:07 AM esmie moo < > > [email protected]> wrote: > > > > > Gentle Readers, > > > I encountered a problem with a space abend for a IAM VSAM EXTENDED > > > FORMAT.dsn. In the DATACLAS we have the Volume Count at 30 so I > changed > > it > > > to 40. I restarted the job however it abended at NUMBER OF VOLUMES > 30.My > > > question Is what is the maximum number of volumes that cane be > allocated > > > via the SMS DATACLAS for the Volume Count? > > > > > > > Did you reallocate the DSN? The value for volume count is set from the > > DATACLAS at allocation time. Any changes to the DATACLAS after allocation > > are not used. The simpliest way to increase the volume count is to: > > > > ALTER <<<dsn>>> ADDVOL(* * * * * * * * * *) > > > > Put in as many asterisks are you want extra volumes. > > > > > > > > > Thanks in advance. > > > > > > > > -- > > I just burned 2000 calories! > > That's the last time I'll nap with brownies in the oven. > > > > Maranatha! <>< > > John McKown > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > > -- > I just burned 2000 calories! > That's the last time I'll nap with brownies in the oven. > > Maranatha! <>< > John McKown > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
