Code: |
CISZ CI/CA HI U RBA TI CASZ BUFNI 22528 33 13044860928 17611 743424 65 |
Code: |
LISTCAT ENT('VSAMFILE') ALL 0CLUSTER ------- VSAMFILE IN-CAT --- CATALOG.VOLUXXX HISTORY DATASET-OWNER-----(NULL) CREATION--------2014.172 RELEASE----------------2 EXPIRATION------0000.000 SMSDATA STORAGECLASS ---STANDARD MANAGEMENTCLASS-PRODVSAM DATACLASS ------XTNDADDR LBACKUP ---0000.000.0000 EATTR-------------(NULL) BWO STATUS------00000000 BWO TIMESTAMP---00000 00:00:00.0 BWO---------------(NULL) RLSDATA LOG ----------------(NULL) RECOVERY REQUIRED --(NO) FRLOG ------------(NULL) VSAM QUIESCED -------(NO) RLS IN USE ---------(NO) 0 LOGSTREAMID-----------------------------(NULL) RECOVERY TIMESTAMP LOCAL-----X'0000000000000000' RECOVERY TIMESTAMP GMT-------X'0000000000000000' PROTECTION-PSWD-----(NULL) RACF----------------(NO) ASSOCIATIONS DATA-----VSAMFILE.ZZZZZZZZ.DATA INDEX----VSAMFILE.ZZZZZZZZ.INDX 0 DATA ------- VSAMFILE.ZZZZZZZZ.DATA IN-CAT --- CATALOG.VOLUXXX HISTORY DATASET-OWNER-----(NULL) CREATION--------2014.172 RELEASE----------------2 EXPIRATION------0000.000 ACCOUNT-INFO-----------------------------------(NULL) PROTECTION-PSWD-----(NULL) RACF----------------(NO) ASSOCIATIONS CLUSTER--VSAMFILE ATTRIBUTES KEYLEN----------------27 AVGLRECL--------------80 BUFSPACE-----------49152 CISIZE-------------22528 RKP--------------------0 MAXLRECL-------------612 EXCPEXIT----------(NULL) CI/CA-----------------33 STRIPE-COUNT-----------1 ACT-DIC-TOKEN----X'4000000A01000540070208FE05FE0DFE0EFE0AFE00000000000000000000000000000000' SHROPTNS(2,3) SPEED UNIQUE NOERASE INDEXED NOWRITECHK NOIMBED NOREPLICAT UNORDERED NOREUSE NONSPANNED COMP-FORMT EXTENDED EXT-ADDR STATISTICS REC-TOTAL-------99672605 SPLITS-CI--------------0 EXCPS-------------238518 REC-DELETED------------0 SPLITS-CA--------------0 EXTENTS----------------3 REC-INSERTED--------5854 FREESPACE-%CI---------15 SYSTEM-TIMESTAMP: REC-UPDATED------------0 FREESPACE-%CA---------10 X'CD586AE157189D08' REC-RETRIEVED--299145797 FREESPC-------1523185664 USER-DATA-SIZE----------------------------24244909162 COMP-USER-DATA-SIZE------------------------9794693864 ALLOCATION SPACE-TYPE------CYLINDER HI-A-RBA-----13381632000 1IDCAMS SYSTEM SERVICES TIME: 15:56:46 06/23/14 PAGE 2 0 SPACE-PRI-----------1000 HI-U-RBA-----13044860928 SPACE-SEC-----------1000 VOLUME VOLSER------------VVSM08 PHYREC-SIZE---------5632 HI-A-RBA-----13381632000 EXTENT-NUMBER----------3 DEVTYPE------X'3010200F' PHYRECS/TRK------------9 HI-U-RBA-----13044860928 EXTENT-TYPE--------X'40' VOLFLAG------------PRIME TRACKS/CA-------------15 EXTENTS: LOW-CCHH-----X'00BE0000' LOW-RBA----------------0 TRACKS-------------15000 HIGH-CCHH----X'04A5000E' HIGH-RBA-------743423999 LOW-CCHH-----X'04E20000' LOW-RBA--------743424000 TRACKS-------------45000 HIGH-CCHH----X'1099000E' HIGH-RBA------2973695999 LOW-CCHH-----X'38E10000' LOW-RBA-------2973696000 TRACKS------------210000 HIGH-CCHH----X'6F90000E' HIGH-RBA-----13381631999 VOLUME VOLSER-----------------* PHYREC-SIZE------------0 HI-A-RBA---------------0 EXTENT-NUMBER----------0 DEVTYPE------X'3010200F' PHYRECS/TRK------------0 HI-U-RBA---------------0 EXTENT-TYPE--------X'FF' VOLFLAG--------CANDIDATE TRACKS/CA--------------0 VOLUME VOLSER-----------------* PHYREC-SIZE------------0 HI-A-RBA---------------0 EXTENT-NUMBER----------0 DEVTYPE------X'3010200F' PHYRECS/TRK------------0 HI-U-RBA---------------0 EXTENT-TYPE--------X'FF' VOLFLAG--------CANDIDATE TRACKS/CA--------------0 VOLUME VOLSER-----------------* PHYREC-SIZE------------0 HI-A-RBA---------------0 EXTENT-NUMBER----------0 DEVTYPE------X'3010200F' PHYRECS/TRK------------0 HI-U-RBA---------------0 EXTENT-TYPE--------X'FF' VOLFLAG--------CANDIDATE TRACKS/CA--------------0 0 INDEX ------ VSAMFILE.ZZZZZZZZ.INDX IN-CAT --- CATALOG.VOLUXXX HISTORY DATASET-OWNER-----(NULL) CREATION--------2014.172 RELEASE----------------2 EXPIRATION------0000.000 PROTECTION-PSWD-----(NULL) RACF----------------(NO) ASSOCIATIONS CLUSTER--VSAMFILE ATTRIBUTES KEYLEN----------------27 AVGLRECL---------------0 BUFSPACE---------------0 CISIZE--------------4096 RKP--------------------0 MAXLRECL------------4089 EXCPEXIT----------(NULL) CI/CA-----------------12 SHROPTNS(2,3) RECOVERY UNIQUE NOERASE NOWRITECHK NOIMBED NOREPLICAT UNORDERED NOREUSE EXTENDED EXT-ADDR STATISTICS REC-TOTAL----------17611 SPLITS-CI--------------0 EXCPS-------------145969 INDEX: REC-DELETED------------0 SPLITS-CA--------------0 EXTENTS----------------2 LEVELS-----------------3 REC-INSERTED-----------0 FREESPACE-%CI----------0 SYSTEM-TIMESTAMP: ENTRIES/SECT-----------5 REC-UPDATED------------0 FREESPACE-%CA----------0 X'CD586AE157189D08' SEQ-SET-RBA----------------0 REC-RETRIEVED----------0 FREESPC----------1593344 HI-LEVEL-RBA---------1245184 ALLOCATION SPACE-TYPE------CYLINDER HI-A-RBA--------73728000 SPACE-PRI-------------60 HI-U-RBA--------72134656 SPACE-SEC-------------20 VOLUME VOLSER------------VVSM08 PHYREC-SIZE---------4096 HI-A-RBA--------73728000 EXTENT-NUMBER----------2 1IDCAMS SYSTEM SERVICES TIME: 15:56:46 06/23/14 PAGE 3 0 DEVTYPE------X'3010200F' PHYRECS/TRK-----------12 HI-U-RBA--------72134656 EXTENT-TYPE--------X'40' VOLFLAG------------PRIME TRACKS/CA--------------1 EXTENTS: LOW-CCHH-----X'04A60000' LOW-RBA----------------0 TRACKS---------------900 HIGH-CCHH----X'04E1000E' HIGH-RBA--------44236799 LOW-CCHH-----X'109A0000' LOW-RBA---------44236800 TRACKS---------------600 HIGH-CCHH----X'10C1000E' HIGH-RBA--------73727999 VOLUME VOLSER-----------------* PHYREC-SIZE------------0 HI-A-RBA---------------0 EXTENT-NUMBER----------0 DEVTYPE------X'3010200F' PHYRECS/TRK------------0 HI-U-RBA---------------0 EXTENT-TYPE--------X'FF' VOLFLAG--------CANDIDATE TRACKS/CA--------------0 VOLUME VOLSER-----------------* PHYREC-SIZE------------0 HI-A-RBA---------------0 EXTENT-NUMBER----------0 DEVTYPE------X'3010200F' PHYRECS/TRK------------0 HI-U-RBA---------------0 EXTENT-TYPE--------X'FF' VOLFLAG--------CANDIDATE TRACKS/CA--------------0 VOLUME VOLSER-----------------* PHYREC-SIZE------------0 HI-A-RBA---------------0 EXTENT-NUMBER----------0 DEVTYPE------X'3010200F' PHYRECS/TRK------------0 HI-U-RBA---------------0 EXTENT-TYPE--------X'FF' VOLFLAG--------CANDIDATE TRACKS/CA--------------0 1IDCAMS SYSTEM SERVICES TIME: 15:56:46 06/23/14 PAGE 4 0 THE NUMBER OF ENTRIES PROCESSED WAS: AIX -------------------0 ALIAS -----------------0 CLUSTER ---------------1 DATA ------------------1 GDG -------------------0 INDEX -----------------1 NONVSAM ---------------0 PAGESPACE -------------0 PATH ------------------0 SPACE -----------------0 USERCATALOG -----------0 TAPELIBRARY -----------0 TAPEVOLUME ------------0 TOTAL -----------------3 0 THE NUMBER OF PROTECTED ENTRIES SUPPRESSED WAS 0 0IDC0001I FUNCTION COMPLETED, HIGHEST CONDITION CODE WAS 0 |
expat wrote: |
There is no 'rule of thumb for the calculation of VSAM buffers for a file. |
expat wrote: |
For sequential I usually use between 5 and 10 for BUFND and 3 for BUFNI. |
William Collins wrote: |
Do you need those SHAREOPTIONS (2,3)? I'm pretty sure they're going to mess you up. Because another task can have the file open for update, a sequential read is not going to use the sequence set. |
William Collins wrote: |
Use BUFNI and BUFND of 50. This is not to see how wonderful BUFNI of 50 is (it probably won't be) but to see them under equal conditions. What we'd be looking for is a big change in the number of I/Os as the second REPRO will use the sequence set, and the first one not. |
Magesh_J wrote: |
My understanding if we have CI/CA + 1 will help in reading full cylinder at a time. Please advice |
Magesh_J wrote: |
For sequential read, please advice why we need index buffer. |
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