Space banner

   

This space provides the same content as before, but the organization of the home page has changed. The content is now organized based on logical branches instead of legacy book titles. We hope that the new structure will help you quickly find the content that you need.

Data set statistics record layout

The following table shows the record layout for data set statistics.

Offset (Dec)

Format

Length

Description

SAS format

SMF header

1

Binary

1

System indicator

PIB1.

2

Binary

1

Record number

PIB1.

3


8

SMF timestamp

SMFSTAMP8.

11

Char

4

SID

$4.

XBM header

15

Binary

1

Record Type

PIB1.

16

Char

4

XBM SSID

$4.

20

Char

8

Version text

$8.

28

Binary

1

Number of sections

PIB1.

Data set statistics section

00

Binary

4

Length of Section

PIB4.

04

Binary

4

Object ID (Data Sets = 113)

PIB4.

08

NA

4

Reserved

NA

12

NA

4

Reserved

NA

16

NA

2

Reserved

NA

18

NA

2

Reserved

NA

20

NA

8

Create timestamp

NA

28

NA

8

Statistics timestamp

NA

36

NA

8

Interval time in seconds

RB8.

44

NA

NA

Reserved

NA

48

Binary

1

Compress switch

PIB1.

49

Binary

1

Active switch

PIB1.

50

Binary

1

Cache type

PIB1.

51

Char

45

Data set name

$44

96

Binary

4

Priority

PIB4.

100

Char

33

Activating management set

$32.

133

NA

7

Reserved

NA

140

Binary

8

Cache used bytes

PIB8.

148

Binary

8

Cache original bytes

PIB8.

156

Binary

8

Cache compressed bytes

PIB8.

164

Binary

8

Blocks written to DASD

PIB8.

172

Binary

8

Snapshot of WRITES

PIB8.

180

Binary

8

Snapshot of WRITES1

PIB8.

188

Binary

8

Blocks written to cache

PIB8.

196

Binary

8

Snapshot of CWRITES

PIB8.

204

Binary

8

Snapshot of CWRITES1

PIB8.

212

Binary

8

Cache write failures

PIB8.

220

Binary

8

Block read while inactive (from DASD)

PIB8.

228

Binary

8

Snapshot of READS

PIB8.

236

Binary

8

Snapshot of READS1

PIB8.

244

Binary

8

Blocks read while active (from cache and DASD)

PIB8.

252

Binary

8

Snapshot of AREADS

PIB8.

260

Binary

8

Snapshot of AREADS1

PIB8.

268

Binary

8

Blocks satisfied from cache

PIB8.

276

Binary

8

Snapshot of HITS

PIB8.

284

Binary

8

Snapshot of HITS1

PIB8.

292

Binary

8

Cache read failures

PIB8.

300

Binary

8

Bytes output to disk

PIB8.

308

Binary

8

Output time in microseconds

PIB8.

316

Binary

8

Bytes written to cache

PIB8.

324

Binary

8

Write time in microseconds

PIB8.

332

Binary

8

Bytes read from cache

PIB8.

340

Binary

8

Read time in microseconds

PIB8.

348

Binary

8

Bytes input from DASD

PIB8.

356

Binary

8

Input time in microseconds

PIB8.

364

Binary

8

Cache high water mark

PIB8.

372

Binary

8

Accumulated cache writes before resetting statistics (0 if statistics are not reset)

PIB8.

380

Binary

8

Accumulated bytes written to cache before resetting statistics

PIB8.

388

Char

1

Dynamic cache flag ‘y’

$1.

389

Char

1

Statistics reset ‘y’

$1.

390

Char

1

Dynamic deactivate ‘y’

$1.

391

Char

1

Inefficient blocksize ‘y’

$1.

392

Binary

4

Listable flag

PIB4.

396

Binary

4

Self address

PIB4.

400

Char

1

Global IO enabled ‘y’

$1.

401


3

Reserved


404

Binary

8

Cache byte limit

PIB8.

Snapshot data set statistics section

00

Binary

4

Length of Section

PIB4.

04

Binary

4

Object ID (Data Sets = 113)

PIB4.

08

NA

4

Reserved

NA

12

NA

4

Reserved

NA

16

NA

2

Reserved

NA

18

NA

2

Reserved

NA

20

NA

8

Create timestamp

NA

28

NA

8

Statistics timestamp

NA

36

NA

8

Interval time in seconds

RB8.0

44

Binary

4

Cache byte limit

PIB4.

48

Binary

1

Compress switch

PIB1.

49

Binary

1

Active switch

PIB1.

50

Binary

1

Cache type

PIB1.

51

Char

45

Data set name

$44

96

Binary

4

Priority

PIB4.

100

Char

33

Activating management set

$32.

133

NA

7

Reserved

NA

140

Binary

8

Cache used bytes

PIB8.

148

Binary

8

Cache original bytes

PIB8.

156

Binary

8

Cache compressed bytes

PIB8.

164

Binary

8

Blocks written to DASD

PIB8.

172

Binary

8

Snapshot of WRITES

PIB8.

180

Binary

8

Snapshot of WRITES1

PIB8.

188

Binary

8

Blocks written to cache

PIB8.

196

Binary

8

Snapshot of CWRITES

PIB8.

204

Binary

8

Snapshot of CWRITES1

PIB8.

212

Binary

8

Cache write failures

PIB8.

220

Binary

8

Block read while inactive

PIB8.

228

Binary

8

Snapshot of READS

PIB8.

236

Binary

8

Snapshot of READS1

PIB8.

244

Binary

8

Blocks read while active

PIB8.

252

Binary

8

Snapshot of AREADS

PIB8.

260

Binary

8

Snapshot of AREADS1

PIB8.

268

Binary

8

Blocks satisfied from cache

PIB8.

276

Binary

8

Snapshot of HITS

PIB8.

284

Binary

8

Snapshot of HITS1

PIB8.

292

Binary

8

Cache read failures

PIB8.

300

Binary

8

Bytes output to disk

PIB8.

308

Binary

8

Output time in microseconds

PIB8.

316

Binary

8

Bytes written to cache

PIB8.

324

Binary

8

Write time in microseconds

PIB8.

332

Binary

8

Bytes read from cache

PIB8.

340

Binary

8

Read time in microseconds

PIB8.

348

Binary

8

Bytes input from DASD

PIB8.

356

Binary

8

Input time in microseconds

PIB8.

364

Binary

8

Cache high water mark

PIB8.

372

Binary

8

Accumulated cache writes before resetting statistics (0 if statistics are not reset)

PIB8.

380

Binary

8

Accumulated bytes written to cache before resetting statistics

PIB8.

388

Char

1

Dynamic cache flag ‘y’

$1.

389

Char

1

Statistics reset ‘y’

$1.

390

Char

1

Dynamic deactivate ‘y’

$1.

391

Char

1

Inefficient blocksize ‘y’

$1.

392

Binary

8

Cacheable flag

PIB8.

400

Char

1

Global IO enabled ‘y’

$1.

401

Char

31

Reserved


DB2 statistics section

00

Binary

4

Length of Section

PIB4.

04

Binary

4

Object ID (DB2 DSN = 154)

PIB4.

08

Binary

4

Reserved

NA

12

Binary

4

Reserved

NA

16

Binary

2

DB2 DBID

PIB2.

18

Binary

2

DB2 PSID

PIB2.

20

Char

8

Database name

$8.

28

Char

8

Table space name

$8.

36

Char

4

Partition

$4.

40

Char

5

DB2 SSID

$4.

45

Char

1

Compression type key

$1.

46

NA

6

Reserved

PIB8.

52

Binary

8

Sync reads SIOs

PIB8.

60

Binary

8

Snapshot of SREADS

PIB8.

68

Binary

8

Snapshot of SREADS1

PIB8.

76

Binary

8

Sync writes SIOs

PIB8.

84

Binary

8

Snapshot of SWRITES

PIB8.

92

Binary

8

Snapshot of SWRITES1

PIB8.

100

Binary

8

Sync reads total time

PIB8.

108

Binary

8

Snapshot of SRTIME

PIB8.

116

Binary

8

Snapshot of SRTIME1

PIB8.

124

Binary

8

Sync writes total time

PIB8.

132

Binary

8

Snapshot of SWTIME

PIB8.

140

Binary

8

Snapshot of SWTIME1

PIB8.

148

Binary

8

Async reads SIOs

PIB8.

156

Binary

8

Snapshot of AREADS

PIB8.

164

Binary

8

Snapshot of AREADS1

PIB8.

172

Binary

8

Async writes SIOs

PIB8.

180

Binary

8

Snapshot of AWRITES

PIB8.

188

Binary

8

Snapshot of AWRITES1

PIB8.

196

Binary

8

Async reads total time

PIB8.

204

Binary

8

Snapshot of ARTIME

PIB8.

212

Binary

8

Snapshot of ARTIME1

PIB8.

220

Binary

8

Async writes total time

PIB8.

228

Binary

8

Snapshot of AWTIME

PIB8.

236

Binary

8

Snapshot of AWTIME1

PIB8.

244

Binary

8

Async reads total pages

PIB8.

252

Binary

8

Snapshot of ARPAGES

PIB8.

260

Binary

8

Snapshot of ARPAGES2

PIB8.

268

Binary

8

Async write total pages

PIB8.

276

Binary

8

Snapshot of AWPAGES

PIB8.

284

Binary

8

Snapshot of AWPAGES2

PIB8.

292

Binary

4

Page size

PIB4.

296

Char

1

Statistics reset ‘y’

$1.

297

Char

43

Reserved


Snapshot utilities statistics section


00

Binary

4

Length of Section

PIB4.

04

Binary

4

Object ID (snapshot = 158)

PIB4.

08

Binary

4

Reserved

NA

12

Binary

4

Reserved

NA

16

Binary

4

Function

PIB4.

20

Binary

4

Return code

PIB4.

24

Binary

4

Reason code

PIB4.

28

Binary

4

ASID

PIB4.

32

Binary

4

TCB

PIB4.

36

Char

9

Component name

$8.

45

Char

45

Data set name

$44.

90

Char

5

XBM SSID

$4.

95

Char

9

User jobname

$8.

104

Char

9

User stepname

$8.

113

Char

9

User ID

$8.

122

Char

1

Compression

$1.

123

Binary

4

Priority

PIB4.

127

Binary

4

Allocated

PIB4.

131

Binary

4

Used bytes

PIB4.

135

Binary

4

Limit size

PIB4.

139

Binary

8

Percent used

PIB8.

147

Binary

8

Blocks

PIB8.

155

Binary

8

Active reads

PIB8.

163

Binary

8

Read hits

PIB8.

171

Binary

8

Read hit ratio

PIB8.

179

Binary

8

Writes

PIB8.

187

Binary

8

Cache writes

PIB8.

195

Binary

8

Maximum cache bytes

PIB8.

203

Char

5

DB2 SSID

$4.

208

Binary

4

RBA maintained by XBM

PIB4.

212

Binary

4

RBA maintained by user

PIB4.

VSAM statistics section

00

Binary

4

Length of section

PIB4.

04

Binary

4

Object ID (VSAM=199)

PIB4.

08

Binary

4

Reserved

NA

12

Binary

4

Reserved

NA

16

Binary

1

Compression

PIB1.

20

Binary

4

Control interval size

PIB4.

24

Binary

4

Control intervals per control area

PIB4.

28

Binary

4

Share option 1

PIB4.

32

Binary

4

Share option 2

PIB4.

36

Char

96

Reserved

NA

132

Binary

8

Direct reads

PIB8.

140

Binary

8

Snapshot direct reads 1

PIB8.

148

Binary

8

Snapshot direct reads 2

PIB8.

156

Binary

8

Direct writes

PIB8.

164

Binary

8

Snapshot direct writes 1

PIB8.

172

Binary

8

Snapshot direct writes 2

PIB8.

180

Binary

8

Direct reads time

PIB8.

188

Binary

8

Snapshot direct reads 1 time

PIB8.

196

Binary

8

Snapshot direct reads 2 time

PIB8.

204

Binary

8

Direct writes time

PIB8.

212

Binary

8

Snapshot direct writes 1 time

PIB8.

220

Binary

8

Snapshot direct writes 2 time

PIB8.

228

Binary

8

Sequential reads

PIB8.

236

Binary

8

Snapshot sequential reads 1

PIB8.

244

Binary

8

Snapshot sequential reads 2

PIB8.

252

Binary

8

Sequential writes

PIB8.

260

Binary

8

Snapshot sequential writes 1

PIB8.

268

Binary

8

Snapshot sequential writes 2

PIB8.

276

Binary

8

Sequential reads time

PIB8.

284

Binary

8

Snapshot sequential reads 1 time

PIB8.

292

Binary

8

Snapshot sequential reads 2 time

PIB8.

300

Binary

8

Sequential writes time

PIB8.

308

Binary

8

Snapshot sequential writes 1 time

PIB8.

316

Binary

8

Snapshot sequential writes 2 time

PIB8.

324

Binary

8

Sequential reads pages

PIB8.

332

Binary

8

Snapshot sequential read pages 1

PIB8.

340

Binary

8

Snapshot sequential read pages 2

PIB8.

348

Binary

8

Snapshot sequential write pages

PIB8.

356

Binary

8

Snapshot sequential write pages 1

PIB8.

364

Binary

8

Snapshot sequential write pages 2

PIB8.

372

Char

1

Statistics reset flag ‘y’

$1.

373

Char

1

VSAM retain attribute

$1.

374

Char

2

Reserved

NA

376

Binary

1

VSAM attributes

PIB1.

377

Binary

1

VSAM strings

PIB1.

378

Binary

4

IMS dbrc usage indicator

PIB4.

382

Binary

4

Number of buffers

PIB4.

386

Binary

8

VSAM statistics

PIB8.

394

Binary

4

Number of index levels

PIB4.

398

Binary

4

VSAM extents

PIB4.

402

Binary

4

Number of user records

PIB4.

406

Binary

4

Deleted records

PIB4.

410

Binary

4

Inserted records

PIB4.

414

Binary

4

Updated records

PIB4.

418

Binary

4

Number of retrieved records

PIB4.

422

Binary

4

Bytes of freespace

PIB4.

426

Binary

4

VSAM control interval splits

PIB4.

430

Binary

4

VSAM control area splits

PIB4.

434

Binary

4

EXCPs issued

PIB4.

438

Char

48

Reserved

NA

Extended prefetch statistics section

00

Binary

4

Length of section

PIB4.

04

Binary

4

Object ID (PSS=272)

PIB4.

08

Binary

8

Reserved

NA

16

Binary

4

Buffer space allocated

PIB4.

20

Binary

4

Number of buffer acquisitions

PIB4.

24

Binary

4

Number of buffer acquisition attempts

PIB4.

28

Binary

32

Reserved


60

Binary

8

Blocks read by Prefetch

PIB8.

68

Binary

8

Blocks read by application while Prefetch active

PIB8.

76

Binary

8

Blocks satisfied by Prefetch

PIB8.

84

Binary

8

Physical I/O requests by Prefetch

PIB8.

92

Binary

4

Return Code

PIB4.

96

Binary

4

Reason Code

PIB4.

100

Binary

20

Reserved

NA

IMS statistics section

00

Binary

4

Length of Section

PIB4.

04

Binary

4

Object ID (IMS DSN=242)

PIB4.

08

Binary

4

Reserved

NA

12

Binary

4

Reserved

NA

16

Char

1

Statistics reset

$1.

17

Char

1

Data set type

$1.

18

Char

1

Compression type key

$1.

19

Char

1

Reserved

$1.

20

Binary

4

Block size

PIB4.

24

Char

20

Reserved

NA

44

Binary

4

Control interval size

PIB4.

48

Binary

4

Control area size

PIB4.

52

Binary

4

Share option 1

PIB4.

56

Binary

4

Share option 2

PIB4.

60

Binary

8

Direct read SIOs

PIB8.

68

Binary

8

Snapshot of DREAD

PIB8.

76

Binary

8

Snapshot of DREAD1

PIB8.

84

Binary

8

Direct write SIOs

PIB8.

92

Binary

8

Snapshot of DWRITES

PIB8.

100

Binary

8

Snapshot of DWRITES1

PIB8.

108

Binary

8

Direct reads total time

PIB8.

116

Binary

8

Snapshot of DRTIME

PIB8.

124

Binary

8

Snapshot of DRTIME1

PIB8.

132

Binary

8

Direct writes total time

PIB8.

140

Binary

8

Snapshot of DWTIME

PIB8.

148

Binary

8

Snapshot of DWTIME1

PIB8.

156

Binary

8

Sync read SIOs

PIB8.

164

Binary

8

Snapshot of SREAD

PIB8.

172

Binary

8

Snapshot of SREAD1

PIB8.

180

Binary

8

Sync write SIOs

PIB8.

188

Binary

8

Snapshot of SWRITE

PIB8.

196

Binary

8

Snapshot of SWRITE1

PIB8.

204

Binary

8

Sync reads total time

PIB8.

212

Binary

8

Snapshot of SRTIME

PIB8.

220

Binary

8

Snapshot of SRTIME1

PIB8.

228

Binary

8

Sync writes total time

PIB8.

236

Binary

8

Snapshot of SWTIME

PIB8.

244

Binary

8

Snapshot of SWTIME1

PIB8.

252

Binary

8

Sync read total pages

PIB8.

260

Binary

8

Snapshot of SRPAGE

PIB8.

268

Binary

8

Snapshot of SRPAGE1

PIB8.

276

Binary

8

Sync writes total pages

PIB8.

284

Binary

8

Snapshot of SWPAGE

PIB8.

292

Binary

8

Snapshot of SWPAGE1

PIB8.

Was this page helpful? Yes No Submitting... Thank you

Comments