Mark, I guess I would ask if you saw any $HASP263 messages on the other lpars?  
Seeing message $HASP263 would indicate issues with the checkpoint processing.  
That could hold up things on the other members in the MAS.

From the JES2 message manual for z/OS 2.4.

$HASP263
Explanation
WAITING FOR ACCESS TO JES2 CHECKPOINT VOLUME volser
LOCK HELD BY MEMBER member_name
LOCK HELD BY SYSTEM
SYSTEM MANAGED PROCESS ACTIVE
When the primary checkpoint data set resides on DASD, JES2 has issued a RESERVE 
operation to the CKPT1 or
CKPT2 data set on volume volser. The number of seconds specified as the time 
interval on the LOCKOUT
parameter on the MASDEF initialization statement or on the $T MASDEF operator 
command has elapsed, but the
RESERVE operation has not completed. Another member in the multi-access spool 
configuration might have
ended while holding the hardware RESERVE on the checkpoint data set.

This message is informational and displays why the lock cannot be obtained. 
Either:
• The lock is held by another member of the MAS.
• The lock is in transition and is held by MVS. If this state persists, there 
might be an XCF signaling problem or a system might have failed.
• The lock cannot be obtained because a system managed process is active for 
the structure.


Paul Feller
GTS Mainframe Technical Support

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Mark Jacobs
Sent: Tuesday, March 22, 2022 4:25 PM
To: [email protected]
Subject: JES2 Purge Processing [EXTERNAL]

Yesterday we had a job with a huge amount of output take about 48 minutes to 
complete purge processing. While it was being purged everything else on that 
system that required JES2 services, basically spool space, wasn't able to do so 
and was waiting for the purge to complete. This is a 3 system MAS, and I think 
it's safe to say that any JES2 tuning activities hasn't been done in a very 
long time.

Does anyone have suggestions on what to look at in the system/JES2PARM 
configuration that might speed purge processing up if this problem occurs again?

Mark Jacobs

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