So I I upgrade my LFAREA=1M to let’s say 3M I might have a better chance Of getting it
Thanks Joe Reichman On Mon, Feb 2, 2026 at 5:31 PM Glen Garrison <[email protected]> wrote: > Hello, > > This abend issued when the number of large frames, of the size > requested, have been exhausted and the iarv64 getstor request is cond=n > either by default or explicitly. Lfarea frames are handed out first come > first serve. If by the time your request comes through there are none > left the system will abend if it can not obtain the number needed by that > request. You can use the MODIFY AXR,IAXDMEM command to see what the large > frame situation is on the system. > Keep in mind, 1m frames are not reserved for 1m requests. If there > is need of 4k frames, available 1m frames will be broken up to feed the 4k > demand. This can result in the iaxdmem command returning values where > 1meg frame in use + available 1m frames is less that the total potential 1m > frames given the lfarea specification. > Z/OS will reform 1m frames gradually but it is not aggressive in > doing so. There was way too much overhead in being aggressive in earlier > releases of 64bit real and virtual. > > > ________________________________ > From: IBM Mainframe Discussion List <[email protected]> on behalf > of Joseph Reichman <[email protected]> > Sent: Monday, February 2, 2026 8:21 AM > To: [email protected] <[email protected]> > Subject: [EXTERNAL] ABEND DC2 reason 005D > > Hi > > I’m not quite understanding this error > > The doc says “there were not enough large frame available in the large > frame area for backing 2G or large pages” > > > I have a 128 gb Zpdt machine with LFAREA=1M > > The IARV64 GETSTOR command worked for a number of months > > Most recently it states failing with the same number of jobs running in my > system > > I I have 80 gb allocated to running Zpdt > > Any insights appreciated > > Thanks > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
