$ChkpInf

Function

Returns information about checkpoints. It takes one argument, which specifies what information to return.

Syntax

$CHKPINF(request-code)

Where:

request- code	Asking to return...	$CHKPINF returns...	Meaning that checkpointing is...
0	Checkpoint status	0	Not active
		1	Currently being taken (by CPTIME or by CHECKPOINT command)
		2	Active, but no auto checkpoints; CPTIME=0
		3	Active and CPTIME does not equal 0
1	Date-time for/var> the next checkpoint attempt, scheduled by the CPTIME argument	9999/99/99 99:99:99.99	Not active
		9999/99/99 99:99:99.99	CPTIME=0
		Current date-time	In progress
		yyyy/mm/dd hh:mm:ss.hh	Scheduled date/time
2	Seconds till the next checkpoint attempt, scheduled by the CPTIME parameter	999999999	Not active
		999999999	CPTIME=0
		0	In progress
		sss:hh	Scheduled in this many seconds
3	Time of last successful checkpoint	Date-time of last checkpoint as yyyy/mm/dd hh:mm:ss.hh	Due to CPTIME parameter or CHECKPOINT command
		9999/99/99 99:99:99.99	Not active
4	Seconds since the last successful checkpoint	Time in seconds of checkpoint as sss:hh	Due to CPTIME parameter or the CHECKPOINT command
		999999999	Not active
5	Total number of records currently in CHKPOINT stream, which includes checkpoints and preimages	Number of records
6	Number of checkpoints currently in CHKPOINT stream	Number of checkpoints
7	Extended quiesce status	0	Extended quiesce inactive for this run
		1	Extended quiesce unset: will not be entered
		2	Extended quiesce set; at end of next successful checkpoint extended quiesce state will be reentered
		3	Currently in extended quiesce
		4	Extended quiesce facility non-functional: in EOJ
8	Maximum number of checkpoint records written during an Online run.	Number of checkpoint records	Providing sizing information for the checkpoint data set.

Example

The following procedure illustrates using the $CHKPINF function.

* * * TOP OF PROCEDURE * * * BEGIN PRINT $CHKPINF(0) WITH ' CURRENT CHECKPOINTING STATUS' AT 25 PRINT $CHKPINF(1) WITH ' NEXT SCHEDULED CHECKPOINT' AT 25 PRINT $CHKPINF(2) WITH ' SECONDS UNTIL NEXT SCHEDULED CHECKPOINT' AT 25 PRINT $CHKPINF(3) WITH ' LAST SUCCESSFUL CHECKPOINT TAKEN' AT 25 PRINT $CHKPINF(4) WITH ' SECONDS SINCE LAST SUCCESSFUL CHECKPOINT' AT 25 PRINT $CHKPINF(5) WITH ' # RECORDS CURRENTLY IN CHKPOINT STREAM' AT 25 PRINT $CHKPINF(6) WITH ' # CHECKPOINTS IN CHKPOINT STREAM' AT 25 PRINT $CHKPINF(7) WITH ' EXTENDED QUIESCE STATUS' AT 25 PRINT $CHKPINF(8) WITH ' MAXIMUM CHECKPOINT RECORDS THAT WERE WRITTEN' AT 25 END * * * BOTTOM OF PROCEDURE * * *

Model 204 displays the following output:

3 CURRENT CHECKPOINTING STATUS 2001/11/19 12:40:00.75 NEXT SCHEDULED CHECKPOINT 249.68 SECONDS UNTIL NEXT SCHEDULED CHECKPOINT 2001/11/19 12:20:00.66 LAST SUCCESSFUL CHECKPOINT TAKEN 950.42 SECONDS SINCE LAST SUCCESSFUL CHECKPOINT 7083 # RECORDS CURRENTLY IN CHKPOINT STREAM 1 # CHECKPOINTS IN CHKPOINT STREAM 1 EXTENDED QUIESCE STATUS 22 MAXIMUM CHECKPOINT RECORDS THAT WERE WRITTEN