Operating System Exit Options
Install ABR following the instructions in this section noting the changes to the following panels.
Panel A.I.4.11 - Set Operating System Exit Options
Option 6 - ABR OPEN Exit Options has been added as part of the new ABR feature of recording information in the DSCB when a data set is modified. This feature is similar to a capability of CA Disk. The option 6 panel is shown in “Panel A.I.4.11.6 - Set OPEN Exit Options” in Section 95.3 of this supplement.
Set Operating System Exit Options - Panel A.I.4.11
OPTION ===>
1 - DYNAMIC INSTALLATION EXITS
2 - ABR CATALOG LOCATE EXIT ARCHIVE AUTO-RECALL OPTIONS
3 - ABR CATALOG LOCATE EXIT FDRCLONE AUTO-RECALL OPTIONS
4 - ABR DATA SET NOT FOUND EXIT OPTIONS
5 - ABR DADSM PRE-PROCESSING EXIT OPTIONS
6 - ABR OPEN EXIT OPTIONS
Panel A.I.4.11.1 - Set Dynamic Installation Exits
The ABROPEN and CADISKSVC options have been added to this panel and are documented here. The other options are documented in “Panel A.I.4.11.1 – Set Dynamic Installation Exits” in Section 90.20.
Set Dynamic Installation Exits – Panel A.I.4.11.1
COMMAND ===>
ABRLOC DYNAMICALLY INSTALL THE ABR CATALOG LOCATE EXIT............ NO
ABRDSNF DYNAMICALLY INSTALL THE ABR DATASET NOT FOUND EXIT......... NO
ABRPRE DYNAMICALLY INSTALL THE ABR DADSM PRE-EXIT................. NO
ABROPEN DYNAMICALLY INSTALL THE ABR OPEN EXIT...................... NO
CADISKSVC CA-DISK SVC NUMBER TO INTERCEPT FOR CO-EXISTENCE WITH ABR.. NONE
IEBCOPY DYNAMICALLY INSTALL FDRREORG TO PROCESS IEBCOPY COMPRESS... NO
CONFINST CONFIRM INSTALLATION OF THE FDR SYSTEM EXITS AT IPL TIME... NO
ABROPEN
If set to YES the ABR OPEN exit, module FDR0EX0B, is dynamically installed. This optional exit records in the DSCB the job name or accounting information of the job that last modified the data set, and/or the date that the data set was last modified, as specified on panel A.I.4.11.6.
CADISKSVC
If a number is specified the ABR CA Disk SVC intercept, module FDRSVCA, is dynamically installed; the number is the SVC number of the CA Disk SVC at this installation. The number may be from 201 to 255, and is usually 244.
Follow Panel A.I.4.11.2 through Panel A.I.4.11.5”.
Panel A.I.4.11.6 - Set OPEN Exit Options
This is a new panel that is part of the new ABR feature of recording information in the DSCB when a data set is modified. This feature is similar to a capability of CA Disk. Options OLDBENT and OLDBOFF are also on Panel A.I.4.7, but this panel should be used to set these values when using the LMJOB, LMACCT, and/or LMDATE options.
Set OPEN Exit Options – Panel A.I.4.11.6
COMMAND ===>
LMJOB RECORD JOBNAME THAT MODIFIED A DATASET..................... NO
LMACCT RECORD JOB ACCOUNTING FROM THE JOB THAT MODIFIED A DATASET. NO
LMFIRST RECORD ONLY THE FIRST DATASET MODIFICATION IN A DAY........ NO
LMDATE RECORD THE DATASET LAST MODIFIED DATE...................... NO
OLDBENT MAXIMUM NUMBER OF DATA SET OLD BACKUPS TABLED IN DSCB...... 13
OLDBOFF DSCB RESERVED FIELD OFFSET TO USE FOR OLD BACKUP TABLE..... 62
NOTE: IF THE LMJOB OR LMACCT OPTION IS SELECTED, BUT NOT LMDATE, THEN
THE RECOMMENDED VALUES ARE 5 FOR OLDBENT AND 70 FOR OLDBOFF.
THE OLDBENT VALUE MUST BE 2,3,4,5 AND OLDBOFF MUST BE 70,71,72,73.
THE SUM OF OLDBENT PLUS OLDBOFF MUST NOT EXCEED 75.
IF THE LMDATE OPTION IS SELECTED, THEN
THE OLDBENT VALUE MUST BE 2 AND OLDBOFF MUST BE 73.
LMJOB
Specifies whether to record the JOBNAME that last modified a data set. The ABROPEN exit option must be enabled for this option to take effect.
If the LMJOB option is selected, but not LMDATE, then the recommended values are 5 for OLDBENT and 70 for OLDBOFF. The OLDBENT value must be 2, 3, 4, or 5 and OLDBOFF must be 70, 71, 72, or 73. The sum of OLDBENT plus OLDBOFF must not exceed 75.
Default: The default is that this option is not enabled.
LMACCT
Specifies whether to record the first 8 bytes of the first job accounting field from the job that last modified a data set.
The ABROPEN exit option must be enabled for this option to take effect.
If the LMACCT option is selected, but not LMDATE, then the recommended values are 5 for OLDBENT and 70 for OLDBOFF. The OLDBENT value must be 2, 3, 4, or 5 and OLDBOFF must be 70, 71, 72, or 73. The sum of OLDBENT plus OLDBOFF must not exceed 75.
Default: The default is that this option is not enabled.
LMFIRST
Specifies whether to record only the first data set modification in a day. Setting this option to YES reduces overhead, because only one modification per day is recorded for a given data set. However, if several jobs update a data set on the same day, the LMJOB or LMACCT field then contains the jobname or accounting information for the first modifying job rather than the last.
The ABROPEN exit option must be enabled for this option to take effect.
Default: The default is that this option is not enabled.
LMDATE
Specifies whether to record the date when a data set was last modified.
The ABROPEN exit option must be enabled for this option to take effect.
If this option is enabled, then the OLDBENT value must be 2 and OLDBOFF must be 73.
Default: The default is that this option is not enabled.
OLDBENT
Maximum number of data set old backups tabled in DSCB.
OLDBOFF
DSCB reserved field offset to use for old backup table.