Juergen, You need to allow for some double accounting of unchanged pages on AUX.
While it may not be at the root of what you are seeing, pages that are paged in from AUX and are not changed will remain on AUX. There is some growth in AUX over time because of this. I have no measurement, but I suspect that this will be more pronounced on LPARs with a large CS and occasional bursts of page-out due to spikes in CS use, like dumps, lots of sorts, BLSR, etc. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Juergen Kehr > Sent: Friday, May 16, 2014 6:39 AM > To: [email protected] > Subject: Re: [IBM-MAIN] Auxiliary Storage Usage Problem > > Hi Anthony, > > the presentation you mentioned in your post is one of the sources of > information we already know. Based on these information we already took a > dump of the RASP address space and run the IPCS commands mentioned > there. > > Here you'll find an extract of the results. But I couldn't find any special > data > there. Even more the number of auxiliary pages named in the report (3,394 > + 10,723 = 14,177) are much lower than the number of pages reported in the > SLOTCNT report. So our idea is that there are some kind of orphaned pages, > which are not released until the next IPL. > > > R S M S U M M A R Y R E P O R T > > > > Tot real Prf real Below Prf B Above > ------------- ------------- ----- ----- -------- > In configuration . . . . 1,572,864 1,376,128 4,096 3,968 520,192 > Available for allocation 1,544,923 1,348,204 4,083 3,955 517,316 > Allocated . . . . . . . 1,525,607 1,329,115 637 521 501,714 > Percent usage . . . . . 98 98 15 13 96 > Common fixed frames . . 14,305 14,290 26 26 9,257 > Percent of available . 0 1 0 0 1 > Total fixed frames . . . 61,366 - 40 - 19,021 > Percent of available . 3 - 0 - 3 > > > Number of shared data pages: > Valid and fixed in real . . 19 > Valid and pageable in real . 722 > On auxiliary storage . . . . 3,394 > > Number of 64-bit common memory pages: > Backed in real . . . . . . . 6,195 > Fixed in real . . . . . . . 2,446 > DREF in real . . . . . . . . 112 > On auxiliary storage . . . . 10,723 > > R S M H I G H C O M M O N R E P O R T > > > COMMON ADDRESS RANGE: 000001EF_80000000 - 000001FF_FFFFFFFF > > START VSA END VSA Size St T K F L JOBNAME JOBID CREATE T > > ----------------- ----------------- ---- -- - - - - -------- -------- -------- > -------- > 000001EF_80000000 000001EF_800FFFFF 0001 AC S 0 N N *SYSTEM* ........ > 04/26/20 > 02655EDC > 000001EF_80100000 000001EF_801FFFFF 0001 AC S 0 N N *SYSTEM* ........ > 04/26/20 > 02655F90 > 000001EF_80200000 000001EF_802FFFFF 0001 AC S 0 N N *SYSTEM* ........ > 04/26/20 > 02656044 > 000001EF_80300000 000001EF_803FFFFF 0001 AC J 0 N N *MASTER* ........ > 04/26/20 > 026560F8 > 000001EF_80400000 000001EF_804FFFFF 0001 AC S 0 N N *SYSTEM* ........ > 04/26/20 > 026561AC > 000001EF_80500000 000001EF_805FFFFF 0001 AC J 0 N N CONSOLE ........ > 04/26/20 > 02656260 > 000001EF_80600000 000001EF_806FFFFF 0001 AC S 0 N N *SYSTEM* ........ > 04/26/20 > 02656314 > 000001EF_80700000 000001EF_807FFFFF 0001 AC J 0 N N *MASTER* ........ > 04/26/20 > 026563C8 > 000001EF_80800000 000001EF_808FFFFF 0001 AC S 0 Y N *SYSTEM* ........ > 04/26/20 0265647C > > 000001EF_81400000 000001EF_817FFFFF 0004 AC J 6 N N CNMNET STC03972 > 04/26/20 > 02656CEC > 000001EF_81800000 000001EF_818FFFFF 0001 AC S 0 Y N *SYSTEM* ........ > 04/26/20 > 02656DA0 > 000001EF_81900000 000001F0_22BFFFFF 0A13 AC J 6 Y N TCPIP STC04001 > 04/26/20 > 02656E54 > 000001F0_22C00000 000001F0_22CFFFFF 0001 AC J 6 Y N TCPIP STC04001 > 04/26/20 > 02656F08 > > > START VSA END VSA Size St T K F L JOBNAME JOBID CREATE T > > ----------------- ----------------- ---- -- - - - - -------- -------- -------- > -------- > 000001F0_22D00000 000001F0_235FFFFF 0009 AC J 1 Y N JES2AUX ........ > 04/26/20 > 0532EFCC > 000001F0_80000000 000001F1_FFFFFFFF 1800 AC J 7 Y N DB41MSTR STC04011 > 04/26/20 > 0532EF18 > 000001FF_FFE00000 000001FF_FFFFFFFF 0002 AC S 0 N N IOSAS ........ > 04/26/20 > 02655E28 > > > > > R S M H I G H V I R T U A L S H A R E D D A T A R E P O R T > > > SHARED ADDRESS RANGE: 00000200_00000000 - 0001FFFF_FFFFFFFF > > S START VSA END VSA ST K F VT JOBNAME ASID CREATE TIME > - ----------------- ----------------- -- - - -- -------- ---- > ---------------- > G 00000200_00000000 0000021F_FFFFFFFF R 7 Y - TCPIP 0050 04/26/2014 > 11:02 > DB41DIST 0068 > DB41DBM1 0067 > DB41MSTR 0058 > G 00000220_00000000 00000227_FFFFFFFF R 7 Y - DB41DIST 0068 04/26/2014 > 11:02 > DB41DBM1 0067 > DB41MSTR 0058 > G 00000228_00000000 0000023B_FFFFFFFF R 7 N - DB41MSTR 0058 > 04/26/2014 11:05 > DB41DBM1 0067 > ADHMSTR 008C > ADHCDB41 008D > G 0000023C_00000000 0000023C_3FFFFFFF S 7 N - DB41MSTR 0058 > 04/26/2014 11:05 > DB41DBM1 0067 > ADHMSTR 008C > ADHCDB41 008D > L 0000023C_40000000 0000023C_44AFFFFF S 2 Y - WAS801 0060 04/26/2014 > 11:05 > G 0000023C_44B00000 0000023C_48BFFFFF S 7 N - DB41DIST 0068 > 04/26/2014 11:05 > DB41MSTR 0058 > DB41DBM1 0067 > ADHMSTR 008C > ADHCDB41 008D > G 0000023C_48C00000 0000023C_88BFFFFF S 7 N - DB41DIST 0068 > 04/26/2014 11:05 > DB41MSTR 0058 > DB41DBM1 0067 > ADHMSTR 008C > ADHCDB41 008D > L 0000023C_88C00000 0000023C_8D6FFFFF S 8 Y - WAS801S 00AE > 04/26/2014 11:07 G 0000023D_00000000 0000023E_3FFFFFFF R 7 N - > ADHMSTR 008C 04/26/2014 11:05 > DB41MSTR 0058 > DB41DBM1 0067 > ADHCDB41 008D > > But the question still is, if that's true who requested these slots, and how > to > avoid this behaviour. > > Regards > Juergen > > > ---------------------------------------------------------------------- > 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
