X'D0' trace entry
The X'D0' trace entry is shown.
The X'D0' trace entry
Words 0 and 1 are common to all X’D0’ trace entries. The format of words 2 through 7 depends on the content of the trace entry.
- Word 0
- Byte 1
- X’D0’ - IRLM notify sent trace entry
- Byte 2
- PST number
- Bytes 3 and 4
- Trace sequence number
- Word 1
- Byte 1
- Sub-route code:
- 4
- VSAM buffer invalidation
- 8
- VSAM write I/O error
- 12 or 40
- VSAM data set extension
- 16
- OSAM buffer invalidation
- 20
- OSAM write I/O error
- 24 or 44
- OSAM data set extension
- 28
- Force snap
- 32 or 36
- Extended error queue element add or delete
- Bytes 2 and 3
- DMB number or PID for partition
- Byte 4
- DCB number
Format for buffer invalidation or write error notify: Words 2 - 7 use the following format in a trace record for a buffer invalidation or write error notification:
- Word 2
- RBN/RBA of buffer
- Word 3
- Not used
- Word 4
- Not used
- Word 5
- Not used
- Word 6
- Bytes 1 to 3
- Not used
- Byte 4
- NCBFLAG
- Word 7
- Not used
Format for OSAM data set extend: Words 2 - 7 use the following format in a trace record for an OSAM data set extension:
- Word 2
- DCBHIBLK
- Word 3
- DCBRLBLK
- Word 4
- DCBRBASN
- Word 5
- Volume serial number
- Word 6
- Bytes 1 and 2
- Volume serial number (continued)
- Byte 3
- Not used
- Byte 4
- NCBFLAG
- Byte 7
- Not used
Words 2 - 7 use the following format in a trace record for a VSAM data set extension:
- Word 2
- VSILVL - VSI level number (current)
- Word 3
- VSIHRBA - Highest-used relative byte address (current)
- Word 4
- VSIERBA - Highest-allocated relative byte address (current)
- Word 5
- VSILVL - VSI level number (extent)
- Word 6
- VSIHRBA - Highest-used relative byte address (extent)
- Word 7
- VSIERBA - Highest-allocated relative byte address (extent)