The fix for APAR OA54007 was just implemented on our system and has resolved the issue. Great!! ________________________________ From: Frank Swarbrick <frank.swarbr...@outlook.com> Sent: Tuesday, June 12, 2018 9:51 AM To: ibm-main@listserv.ua.edu Subject: IDCAMS REPRO very slow on z/OS 2.3
We just upgraded from z/OS 2.2 to z/OS 2.3 on Sunday morning. This appears to cause IDCAMS REPRO jobsteps to do a lot more I/O and take a lot longer: PROCSTEP RC EXCP CONN TCB SRB CLOCK SERV RECORDS PROCESSED CPCOPY3 00 255K 929K 2.658683 0.159647 15.5 3103515 52662441 CPCOPY3 00 256K 967K 2.679822 0.186634 16.9 3156197 52760628 CPCOPY3 00 256K 1014K 2.693045 0.191031 17.6 3175500 52812944 CPCOPY3 00 257K 1071K 2.698492 0.190811 18.7 3181257 52834640 CPCOPY3 00 257K 1014K 2.706506 0.195671 18.0 3195359 52842738 CPCOPY3 00 258K 909K 2.687564 0.163270 16.3 3139318 52852559 After z/OS v2.3 implementation: CPCOPY3 00 18M 2363K 6.493965 1.100855 101.3 10081297 52859452 CPCOPY3 00 18M 2406K 6.123753 1.018400 100.5 9588445 52888383 So from 15-20 minutes for 5.2 million records to 100 minutes. Anyone know of a system level "tuning" parameter we might need to tweek? Thanks, Frank ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
