COMPAKTOR Statements

COMPAKTOR statements are of two types: major statements and minor statements.

Major statements

Only a single major statement may be used and it must be the first statement input. The major statement determines the COMPAKTOR run type: mapping, simulation, or COMPAKTion. The following major statements are supported:

MAP

This statement tells COMPAKTOR to map one or more DASD volumes, or one FDR backup of a DASD volume.

SIMULATE

This statement causes COMPAKTOR to simulate reorganization of one or more DASD volumes, or one FDR backup of a DASD volume.

COMPAKT

This statement causes COMPAKTOR to reorganize one or more DASD volumes.

If TYPE=RLSE is specified on a SIMULATE or COMPAKT statement, CPK releases unused space within PS, PO, and VSAM data sets.

If no major statement is input to COMPAKTOR, it assumes a default of SIMULATE.

Minor statements

Minor statements must be placed after the major statement, and may be coded as often as required. The following minor statements are supported:

SELECT

This statement may be used to identify a data set or group of data sets that require special handling by COMPAKTOR.

SEQUENCE

This statement may be used to define a set of data sets to be placed in a prescribed sequence (a “sequenced set”).

ENDSEQ

This statement must be used if a SEQUENCE statement was specified, to denote the end of the sequenced set. One or more SELECT statements must appear between the SEQUENCE and ENDSEQ statements.

When SELECT DSN=filter statements are used, they must follow any SEQUENCE, ENDSEQ, and SELECT DSN= statements specifying fully-qualified names.

FDR statements

In addition to the COMPAKTOR statements, CPK accepts the FDR DUMP control statement. When you are doing a COMPAKT-from-backup (TYPE=COMPAKT) and you specify DUMP=YES to cause CPK to invoke FDR to dump the DASD volume, you may want to specify options for FDR to use during the dump. If so, include a DUMP TYPE=FDR statement preceding the COMPAKTOR statements. This statement, if used, must be the first statement in the SYSIN data set, and must be contained on one record (that is, must not be continued). Some of the other operands that are valid are COMPRESS=, MAXERR=, and DSNENQ=. Do not specify the ENQ= or ENQERR= operands; they are ignored. These operands are described in Volume-DUMP-w-FDRINSTANT-Variations-Statement. For example:

DUMP TYPE=FDR,DSNENQ=USE,RTC=YES COMPAKT DUMP=YES

Important

We recommend using FASTCPK (CPK TYPE=FASTCPK) for most COMPAKTions; it does not invoke FDR and does not require the DUMP statement.

Defaults

The defaults for certain operands, such as ACTMESS=, LINECNT=, SIZEKEEP=, NOSECOND=, and HILIGHT= may be permanently changed in the FDR option table. These may be updated via the FDR ISPF support or by program FDRZAPOP. Defaults shown in the descriptions that follow are the defaults distributed with COMPAKTOR.