Data sets must be allocated to the DWWMSG, DWWALT, DWWDMSG,
and DWWDUMP ddnames on each system in a
sysplex that has the CICS® VR server address space running.
In addition, the data sets must be unique for each system. Therefore, CICS VR
requires that the data sets follow a specific naming convention.
However, the naming convention slightly differs according to the
following variations of a system name:
- System name begins with a non-numeric character
- If the first character of the system name is a non-numeric character,
the following naming convention is used.
hlq.slq.DWWMSGA.systemname
hlq.slq.DWWMSGB.systemname
hlq.slq.DWWDMSG.systemname
hlq.slq.DWWDUMP.systemname
Where:
- hlq.slq is the CICS VR
data set name prefix, high level qualifier and optional second level
qualifier, defined in the CICSVR_DSNAME_PREFIX parameter of the active
IGDSMSxx PARMLIB member.
- DWWMSGA, DWWMSGB, DWWDMSG, and DWWDUMP are constants.
- systemname is the name of the system.
For example, if the system name is SYS1, and the value
of the CICSVR_DSNAME_PREFIX parameter is DWW, the naming convention
of the CICS VR server message data sets is:
DWW.DWWMSGA.SYS1
DWW.DWWMSGB.SYS1
- System name begins with a number and is less than 8 characters
long
- If the first character of the system name is a number and the
name is less than 8 characters long, the following naming convention
is used:
hlq.slq.DWWMSGA.Ssystemname
hlq.slq.DWWMSGB.Ssystemname
hlq.slq.DWWDMSG.Ssystemname
hlq.slq.DWWDUMP.Ssystemname
Where:
- hlq.slq is the CICS VR
data set name prefix, high level qualifier and optional second level
qualifier, defined in the CICSVR_DSNAME_PREFIX parameter of the active
IGDSMSxx PARMLIB member.
- DWWMSGA, DWWMSGB, DWWDMSG, and DWWDUMP are constants.
- S is a constant.
- systemname is the name of the system.
For example, if the system name is 1290, and the value
of the CICSVR_DSNAME_PREFIX parameter is DWW, the naming convention
of the DWWDMSG data set is:
DWW.DWWDMSG.S1290
- System name begins with a number and is 8 characters long
- If the first character of the system name is a number and the
name is 8 characters long, the following naming convention is used:
hlq.slq.DWWMSGA.SHsystemname(1:4).SLsystemname(5:8)
hlq.slq.DWWMSGB.SHsystemname(1:4).SLsystemname(5:8)
hlq.slq.DWWDMSG.SHsystemname(1:4).SLsystemname(5:8)
hlq.slq.DWWDUMP.SHsystemname(1:4).SLsystemname(5:8)
Where:
- hlq.slq is the CICS VR
data set name prefix, high level qualifier and optional second level
qualifier, defined in the CICSVR_DSNAME_PREFIX parameter of the active
IGDSMSxx PARMLIB member.
- DWWMSGA, DWWMSGB, DWWDMSG, and DWWDUMP are constants.
- SH is a constant.
- systemname(1:4) is the first four characters
of the system name.
- SL is a constant.
- systemname(5:8) is the last four characters
of the system name.
For example, if the system name is 14091956, and the
value of the CICSVR_DSNAME_PREFIX parameter is DWW, the naming convention
of the DWWDUMP data set is:
DWW.DWWDUMP.SH1409.SL1956