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The GETCB Control Block

The following control block is used by CA JARS when reading SMF records (Phase 2):

GETCB Control Block Layout

Offset

Format

Content

0

CL8

'GETCB' - Identifies this control block.

8

CL8

(internal use)

10

F

Length of work area for assembling spanned records.

14

A

Address of work area.

18

A

Address of current block of SMF data.

1C

A

Address of end of current block.

20

A

Address of current record segment within the block.

24

A

Address of end of current record segment.

28

H

Length of current block.

2A

H

Length of current segment.

2C

H

Length of record in work area, if any.

2E

CL4

(internal use)

32

PL2

Current data set number within concatenation.

34

PL4

Current block number within data set.

38

PL4

Number of records processed in locate mode in the buffer.

3C

PL4

Number of records that had to be assembled in the work area from spanned record segments.

40

PL4

Number of blocks of SMF data discarded.

44

PL4

Number of times spanned record assembly could not be completed.

48

PL4

Block number where first I/O error occurred in a series of I/O errors.

4C

PL2

Number of consecutive I/O errors that have occurred.

4E

PL2

Consecutive I/O error limit (constant).

50

CL6

CAIJSSMF Data Control Block (DCB).