XDMSSN parameter

XDM subsystem

Summary

Default value

Current setting of the z/OS subsystem name linked into the IGCLM244 (CRAM) module

Parameter type

System

Where set

Cannot be reset

Related products

All

Introduced

Model 204 V6.1

Description

The XDMSSN parameter is available only for z/OS with CRAM-XDM.

The XDMSSN parameter passes a z/OS secondary subsystem name that overrides the value stored in the CRAM IGCLM244 module. That value, a maximum of four characters, is initially specified during CRAM installation.

Example: XDMSSN=SS03

On the client side, the XDMSSN parameter applies to the following IODEV threads and can be in the form:

subsystem:channel

where subsystem is a 4-character name, separated by a colon (:) from channel, which is an 8-character name.

IODEV thread	Example or discussion
11	TSO: CALL ’DSN(M204FS)’ ’M204:M204FULL’ CICS: M204 M204:M204FULL DATA logon userid
13	Passed as part of the SQLConnect CLI function call via server name
23	Passed as part of the IFSTRTN (see example below)
29	Passed as part of the IFDIALN call with the CHAN parameter and BATCH2 (see example below)

The subsystem name stored in IGCLM244 can also be overridden by BATCH2 or IFAM2 jobs as shown in the following examples:

• Program Communication facilities:

  //BATCH2 EXEC PGM=BATCH2,PARM='[ssn:channel][,[OMC={Xhh|ddd}] [,URCTYPE={N|O|B}]]'

• IFSTRTN (IFAM2) (HLI function):

  IFSTRTN|IFSTRN (RETCODE,LANG_IND,LOGIN,THRD_TYP,THRD_ID,[SSN:]CHAN)

• IFDIALN (HLI function):

  IFDIALN|IFDILN (RETCODE,LANG_IND,[SSN:]CHAN,BUFFER,IO_LEN)