This Share presentation may be of help, look at pages 22-25 https://share.confex.com/share/121/webprogram/Handout/Session14254/SHARE%20Boston%202013%20Common%20zOS%20Problems.pdf
-----Original Message----- From: Juergen Kehr [mailto:[email protected]] Sent: Friday, May 16, 2014 6:26 AM To: [email protected] Subject: Auxiliary Storage Usage Problem Hello, since a while we recognized that in some of our LPARs the auxiliary storage usage is rising steadily and we can't find out why this happens. I seems that one or more address spaces are not releasing their slots correctly. Here are some sample data from SLOTCNT recorded in a one week intervall. + SLOTCNT PAGE DATASET SLOT USAGE REPORT PAGE 1 ASID JOBNAME TOTAL SLOTS VIO SLOTS NON-VIO SLOTS FRAMES ---- -------- ------------------- ------------------- ------------------- ------------------- 0003 *SHARED* 3,410 0003 *HVSHR* 570,895 320,636 0003 *HVCOMM* 14,107 7,246 0003 RASP 588,464 0 588,464 472 002D ZFS 243,711 0 243,711 139,081 0067 DB41DBM1 165,319 0 165,319 234,079 005B OMIICMS 36,828 0 36,828 10,417 0083 OMIID5 23,501 0 23,501 1,650 ... ---- -------- ------------------- ------------------- ------------------- ------------------- --TOTAL- 1,394,356 0 1,394,356 1,464,576 --ASM--- 3,596,038 0 1,394,356 1,544,900 + SLOTCNT PAGE DATASET SLOT USAGE REPORT PAGE 1 ASID JOBNAME TOTAL SLOTS VIO SLOTS NON-VIO SLOTS FRAMES ---- -------- ------------------- ------------------- ------------------- ------------------- 0003 *SHARED* 3,404 0003 *HVSHR* 742,288 278,711 0003 *HVCOMM* 18,477 6,463 0003 RASP 764,241 0 764,241 448 002D ZFS 340,527 0 340,527 184,879 0067 DB41DBM1 205,769 0 205,769 240,892 000F OMVS 22,622 0 22,622 11,874 008F OMIICMS 21,094 0 21,094 21,326 ... ASID JOBNAME TOTAL SLOTS VIO SLOTS NON-VIO SLOTS FRAMES ---- -------- ------------------- ------------------- ------------------- ------------------- --TOTAL- 1,676,677 0 1,676,677 1,524,741 --ASM--- 3,596,038 0 1,676,677 1,544,905 As you can see the aux storage usage rises from about 39% to about 47% and still growing. OK, we might do PAGEADDs to avoid AUX storage shortages, but we think it would be better to find the cause for this situation, which is, at least from our point of view not normal. Thanks in advance for any ideas. Kind regards. Juergen Kehr ---------------------------------------------------------------------- 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
