The text of health check XCF_DEFAULT_MAXMSG says this: CHECK PARM: 2000
IXCH0426I The XCF transport class MAXMSG value is currently equal to or larger than the owner specified value 2000. . . JO.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 626-302-7535 Office 323-715-0595 Mobile [email protected] From: Mark Zelden <[email protected]> To: [email protected], Date: 06/26/2013 07:20 AM Subject: Re: XCF MAXMSG Sent by: IBM Mainframe Discussion List <[email protected]> On Wed, 26 Jun 2013 08:59:27 -0400, Richards, Robert B. <[email protected]> wrote: >Okay, I am feeling little dense this morning/week. > >I am trying to decode how to determine the best value to set for MAXMSG. Having read and re-read applicable sections of "Setting Up A Sysplex", I am still not "getting it". > >Reason for being there? From the SR: > >EZZ4338I ERROR REPORTED ON INTERFACE EZ6XCFID - CODE 80100044 >DIAGNOSTIC CODE 03 >EZZ4310I ERROR: CODE=80100044 REPORTED ON DEVICE VTAMF. DIAGNOSTIC >CODE: 03 >EZZ4337I ATTEMPTING TO RECOVER INTERFACE EZ6XCFID >EZZ4309I ATTEMPTING TO RECOVER DEVICE VTAMF >IST1504I XCF CONNECTION WITH WDPC.VTAMF IS INOPERATIVE 664 >IST1501I XCF TOKEN = 0300013600270003 >IST1578I DEVICE INOP DETECTED FOR ISTTCDID BY ISTTSCBX CODE = 001 >IST314I END >IST1578I SOFT INOP DETECTED FOR ISTTCDID BY ISTTSC8X CODE = 005 >. >These messages indicate an XCF buffer shortage as described in >Technote SWG21244665 which reads as follows: >For ISTXCF, the MAXMSG parameter for PATHIN and PATHOUT >should be tuned to its upper limit value. >The higher value of MAXMSG parameter does not cause XCF >to use more storage. Therefore, you can raise the value >of your MAXMSG parameter to resolve this problem. > >Any advice on how to decode the manual and come up with a "happy value" would be appreciated. Which maxmsg? > Hi Bob, Here is a note I have in my COUPLExx members. The advise probably comes from a Mark Brooks SHARE presentation or whitepaper. /* MAXMSG should be high enough for at least 30 messages/buffers */ /* default MAXMSG was 750 (chg in os/390 r2 from 500) */ /* default MAXMSG is currently 2000 (chg in z/os 1.7 from 750) */ My MAXMSG is set to 2000 (the z/OS 1.7 default) in CLASSDEF for all of my transport classes. Cheers, Mark ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
