You could also not have enough sessions define from your TOR CICS region to your AOR CICS region this will cause your transaction to wait for a session. This is sometimes what you what to do rather than to clog up the AOR with tasks that will not run do to deadlock situations.
Regards Otto Schumacher HP Enterprise Services Infrastructure Specialist Ahold Account CICS & Capacity Technical Support P.O. Box 6462 2000 Wade Hampton Blvd. LC1-302 Greenville, South Carolina, 29606 Cell: 864 569--5338 Tel: 864 987-1417 Fax: 864 987-4500 E-mail: [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of ??? Sent: Tuesday, March 01, 2011 6:10 AM To: [email protected] Subject: Re: ZCIOWAIT message Thomas Your advice is very useful for me, thanks a lot. At 2011-02-28 21:04:15，"Thomas Dunlap" <[email protected]> wrote: >Eric, > >ZCIOWAIT indicates VTAM terminal control wait. My first guess is that >you are function shipping to another CICS region using VTAM connections >between the regions and you are looking at the front-end transaction. >In this case this is a normal situation. As for optimizing, it is >really dependent upon the function the back-end region. Improve the >task in the back-end region and you will shorten the wait in the front-end. > >-- > >Regards, >Thomas Dunlap Chief Technology Officer [email protected] >Themis, Inc. http://www.themisinc.com 1 (800) 756-3000 > > >On 2/28/2011 5:52 AM, Eric JL wrote: >> When I run a CICS trans, it is use for DB2 select update, found it spend a >> lot >> of time on ZCIOWAIT. Is this a problem? How can I optimize it. >> >> The trans dump >> DATE TIME JOBNAME TRANID TASK# TERMID RESP CPU PAGING ILEIO >> 02/24 00:00:01 CICSA TR68 85748 111.097 0.2186 0 727 >> 02/24 00:00:02 CICSA TR68 87201 0.0346 0.0074 0 17 >> 02/24 00:00:29 CICSA TR68 87583 1.1215 0.1548 0 473 >> 02/24 00:00:51 CICSA TR68 85748 50.6486 0.3856 0 1,162 >> >> >> TR68 #85748 >> >> RES TYPE RES NAME WT CNT WT TIME % OF RESPONSE >> CHANGE PRIOPRITY 60 0.0086 0.00 >> SWITCH TCB 1,454 0.03320 0.29 >> WAIT W/O ID 3 0.0039 0.00 >> WAIT FOR REDSPTCH 1,578 0.3363 0.30 >> ZCIOWAIT 63 1:50.1226 99.12 >> 1ST DISPATCH 1 0.0001 0.00 >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to [email protected] with the message: GET IBM-MAIN INFO >> Search the archives at http://bama.ua.edu/archives/ibm-main.html >> > >---------------------------------------------------------------------- >For IBM-MAIN subscribe / signoff / archive access instructions, >send email to [email protected] with the message: GET IBM-MAIN INFO >Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
