Data sets used for transient data destinations (queues) can be intrapartition
or extrapartition. This section tells you how to define data sets for transient
data queues. The transient data intrapartition data set is a VSAM entry-sequenced
data set (ESDS) used for queuing messages and data within the CICS® region. Transient data extrapartition
data sets are sequential files, normally on disk or tape; each queue can be
used either to send data outside the CICS region or to receive data from outside
the region. For background information about intrapartition and extrapartition
transient data, see the CICS Application Programming Guide.
Messages or other data are addressed to a symbolic queue which you define
as either intrapartition or extrapartition using the CEDA transaction. The
queues can be used as indirect destinations to route
messages or data to other queues.
For information about coding transient data resources, see the CICS Resource Definition Guide.
System messages that CICS produces are commonly sent to transient data queues,
either intrapartition or extrapartition. The following is a brief description
of the queues used by CICS. Sample definitions for the CICS-supplied queues can
be found in group DFHDCTG, which is included in list DFHLIST.
- CADL
- CEDA VTAM® resource log, indirect to CSSL.
- CADO
- AD resource log, indirect to CSSL.
- CAIL
- Autoinstall terminal model resource log, indirect to CSSL.
- CCPI
- CPI Communications message log, indirect to CSSL.
- CCSE
- C error data stream (stderr) log, indirect to CCSO.
- CCSO
- C output data stream (stdout) log,direct to COUT.
- CCZM
- Messages for CICS classes, indirect to CSSL.
- CDB2
- CICS DB2® message log, indirect to CSSL
- CDBC
- Database log, indirect to CSSL.
- CDUL
- Dump message log, indirect to CSSL.
- CEJL
- Enterprise bean message log, indirect to CSSL
- CESE
- Language Environment® error data stream (stderr), direct
to CEEMSG.
- CESO
- Language Environment output data stream (stdout), direct
to DD name CEEOUT.
- CIEO
- ECI over TCP/IP message log, indirect to CSSL.
- CIIL
- IIOP message log, indirect to CSSL.
- CJRM
- Java™ Remote Access Services message log, indirect to CSSL.
- CMIG
- Migration log to detect use of EXEC CICS ADDRESS CSA commands, indirect to CSSL.
- CPLD
- PL/I dumps, indirect to CPLI.
- CPLI
- PL/I SYSPRINT output, direct to DDname PLIMSG.
- CRDI
- RDO install log, indirect to CSSL.
- CRPO
- ONC/RPC message log, direct to DDname CRPO.
- CSBA
- CICS BTS message log, indirect to CSSL.
- CSBR
- Bridge message log, indirect to CSSL.
- CSCC
- CICS Client message log, indirect to CSSL.
- CSCS
- Signon/sign-off security log, indirect to CSSL.
- CSDH
- Document Domain message log, indirect to CSSL.
- CSDL
- CEDA command log, indirect to CSSL.
- CSFL
- File allocation message log, indirect to CSSL.
- CSJE
- JVM error data stream (stderr), indirect to CSSL.
- CSJO
- JVM output data stream (stdout), indirect to CSSL.
- CSKL
- Transaction and profile resource log, indirect to CSSL.
- CSML
- Signon/sign-off message log, indirect to CSSL.
- CSMT
- Terminal error message and transaction abend message log, indirect to
CSSL.
- CSNE
- ZNAC-produced messages log, indirect to CSSL.
- CSOO
- Sockets message log, indirect to CSSL.
- CSPL
- Program resource log, indirect to CSSL.
- CSQL
- Transient data message log, indirect to CSSL
- CSRL
- Partner resource log, indirect to CSSL.
- CSSH
- Scheduler message log, indirect to CSSL.
- CSSL
- Message log, direct to DD name MSGUSR (all the other general CICS queues are
defined as indirect queues to CSSL).
- CSTL
- Terminal I/O error log, indirect to CSSL.
- CSZL
- The queue used for Front End Programming Interface (FEPI) messages,
indirect to CSSL. You do not have to define this queue if you do not have
FEPI installed, but it is included in DFHDCTG.
- CSZX
- The queue used for Front End Programming Interface (FEPI) processing,
indirect to CSSL. You do not have to define this queue if you do not have
FEPI installed, but it is included in DFHDCTG.
- CWBO
- CICS Web support messages, indirect to CSSL.
CWBW
HTTP warning headers on messages received by CICS Web support, indirect to CSSL.
You should include in your CICS region all the queues that CICS uses. Although
the omission of any of the queues does not cause a CICS failure, you lose important information
about your CICS region if CICS cannot write its data to the required queue. Sample
definitions of all the queues that CICS uses can be found in group DFHDCTG, which
is included in list DFHLIST and is unlocked so that you can alter the definitions.
Note:
We recommend that you take a backup copy of the changes made to
DFHDCTG in case maintenance is applied.
For information about the queues used by CICS, see the CICS Resource Definition Guide.
For information about the queues that CICS uses for RDO, see Multiple extents and multiple volumes.
For a way of printing these system messages on a local printer as they
occur, see the transient data write-to-terminal sample program, DFH$TDWT. This sample program is supplied with
the CICS pregenerated system in CICSTS31.CICS.SDFHLOAD, and the assembler source
is in CICSTS31.CICS.SDFHSAMP. For programming information about DFH$TDWT,
see the CICS Customization Guide.
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