Release Notes
Abstract
Updates that apply to IMS Buffer Pool Analyzer 1.4 User’s Guide (SC19-3980-01).
Content
The most recent updates appear at the top of the list.
Update 1
Date of change: January 2022
Change description: Documentation changes related to the description of the GTF trace report
----------------------------
Topic: IMS buffer pool reports > Viewing the IMS Buffer Pool Analyzer reports > GTF trace report
The descriptions of OSAM and VSAM fields have been changed as follows:
OSAM
Shows information about the OSAM trace records that are produced by IMS. OSAM GTF trace record subtypes are also listed as appropriate.
The OSAM subtype can be the OSAM request type, DIFFERNT IMS, or UNKNOWN.
OSAM request type
Indicates the number of records for each OSAM request type. The hexadecimal OSAM-related buffer handler function code that is set in the record is converted to a meaningful text string for this report. See the following table for possible values:
| Hexadecimal value | Subtype |
|---|---|
| E1 | BLOCK LOCATE |
| E2 | BYTE LOCATE |
| EB | BYTLOC+MARK (This subtype represents "Byte locate and mark the buffer as altered") |
| E4 |
CREATE BLOCK
|
DIFFERNT IMS
The number of OSAM records from other subsystems.
UNKNOWN
The number of records other than the above.
VSAM
Shows information about the VSAM trace records that are produced by VSAM. VSAM GTF trace record subtypes are also listed as appropriate.
The VSAM subtype can be the VSAM request type, NOT IMS DB, or UNKNOWN.
VSAM request type
Indicates the number of records for each VSAM request type. The hexadecimal RPLREQ (RPL request type) value that is set in the record is converted to a meaningful text string for this report. See the following table for possible values:
| Hexadecimal value | Subtype |
|---|---|
| 00 | GET |
| 01 | PUT |
| 02 | CHECK |
| 03 | POINT |
| 04 | ENDREQ |
| 05 | ERASE |
| 06 | VERIFY |
| 07 | IMPORT/JESFM ("JESFM" stands for "JES FORMAT") |
| 08 | DATA PREFMT ("PREFMT" stands for "PREFORMAT") |
| 09 | INDEX PREFMT ("PREFMT" stands for "PREFORMAT") |
| 0A | FORCE I/O |
| 0B | RPLREQ=0B |
| 0C | RPLREQ=0C |
| 0D | RPLREQ=0D |
| 0E | RPLREQ=0E |
| 0F | RPLREQ=0F |
| 10 | CNVTAD |
| 11 | MNTACQ |
| 12 | ACQRANGE |
| 13 | TERMRPL |
| 14 | VERIFY REFR ("REFR" stands for "REFRESH") |
| 15 | LKADD |
| 16 | LKREQ |
| 17 | LKCD |
| 18 | INQRC |
| 19 | RETLK |
| 1A | RECOV REQ |
| 1B | QUIESE REQ |
| 1C | EADD REQ |
NOT IMS DB
The number of VSAM buffer activities (GTF F61 records) that were not VSAM traces for the IMS full-function database.
UNKNOWN
The number of records other than the above.
Was this topic helpful?
Document Information
Modified date:
24 January 2022
UID
ibm16550190