BLSCDDIR CLIST — create a dump directory

The IBM-supplied BLSCDDIR CLIST can be used to do the following:

Create a sysplex dump directory
Create a user dump directory when accessing IPCS
Create user dump directories that satisfy special needs
Create multiple user dump directories so that, for example, you can do simultaneous interactive and batch processing

BLSCDDIR uses IBM-defined defaults that can be reset by your installation. For a user dump directory, the installation determines the size and volume default values that best suit your installation's needs using information found in z/OS MVS IPCS Customization.

For more information about the use of BLSCDDIR, see z/OS MVS IPCS User's Guide.

Syntax

    %BLSCDDIR  [ DATACLAS(data-class) ]
               [ DSNAME(dsname) ]
               [ FILE(filename) ]
               [ MGMTCLAS(management-class) ]
               [ NDXCISZ(index-class) ]
               [ NOENQ ]
               [ RECORDS(records) ]
               [ STORCLAS(storage-class) ]
               [ VOLUME(volume) ]

Parameters
DATACLAS(data-class)

Specifies the data class for the new directory. If you omit this parameter, there is no data class specified for the new directory.

DSNAME(dsname)
Specifies the fully-qualified name you want to assign to the directory, If you omit this parameter, the IBM-supplied defaults are:
- If you have a userid prefix, prefix.DDIR
- Otherwise, SYS1.DDIR
FILE(filename)

Specifies the name of the file with which the ALLOCATE command associates the DSNAME. The IBM-supplied default is IPCSDDIR.

MGMTCLAS(management-class)

Specifies the management class for the new directory. If you omit this parameter, there is no management class specified for the new directory.

NDXCISZ(index-cisz)

Specifies the control interval size for the index portion of the new directory. If you omit this parameter, the IBM-supplied default is 4096 bytes.

NOENQ

Suppresses ENQ processing that is intended to block other instances of IPCS from using the directory being prepared for use by IPCSDDIR. IPCS itself uses this option when it has already established the needed serialization. Manual use of this option is not recommended.

RECORDS(records)

Specifies the number of records you want the directory to accommodate. If you omit this parameter, the IBM-supplied default is 5000; your installation's default might vary.

STORCLAS(storage-class)

Specifies the storage class for the new directory. If you omit this parameter, there is no storage class specified for the new directory.

VOLUME(volume)

Specifies the VSAM volume on which the directory should reside. If you omit DATACLAS, MGMTCLAS, STORCLAS, and VOLUME, the IBM-supplied default is VSAM01. Otherwise, there is no IBM-supplied default.
CLIST listing
See the BLSCDDIR member of SYS1.SBLSCLI0.