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CEMT SET CONNECTION
All UOWs shunted due to the failure of this connection
are to be committed. The normal resynchronization
process is to be partially overridden: decisions are taken
for any units of work that are in-doubt due to a failure of
the connection; but the decisions are recorded and any
data inconsistencies are reported when the connection is
next acquired.
ENdaffinity (
appc and lu6.1 only
)
specifies, where CICS is a member of a VTAM generic
resource group, that VTAM is to end an affinity owned
by CICS. This option is valid only for APPC and LU6.1
connections. The connection must be out of service and,
for APPC, in NORECOVDATA state.
Notes:
1. There is no facility in VTAM for inquiring on
affinities, so CICS has no certain knowledge that an
affinity exists for a given connection. Whenever
there is a possibility that an affinity has been
created that you must end explicitly, CICS issues
message DFHZC0177. This message gives the
NETNAME of the suspect connection.
2. If a request to end an affinity is rejected by VTAM
because no such affinity exists, CICS issues
message DFHZC0181.
3. A response of 'NETID 0 USE PRFRM' means that
you cannot use SET CONNECTION to end the
affinity because the value of NETID in the installed
connection is 0. (NETID is the name by which the
network containing the connected LU is known to
VTAM.) To end the affinity, you must use the
PERFORM ENDAFFINITY command, on which you
must specify the correct NETID.
This response can also result from repeatedly hitting
the ENTER key after the affinity has been ended.
4. Generic resources and affinities are described in the
CICS Intercommunication Guide
.
FCancel
All AIDs, including system AIDs, queuing for the
specified connection are to be canceled. See Table 6 on
page 163 for a list of those system AIDS that require
FCANCEL to remove them. This can lead to
unpredictable results and should be used only in
exceptional circumstances.
Note: FCANCEL does not remove transient data AIDs
with an associated triggered task. These aids
may be removed by purging the associated task.
An ‘AIDS CANCELED’ message appears on the CEMT
panel whenever AIDs are deleted using the FCANCEL
option of the CEMT SET CONNECTION command.
FORCEPurge (
vtam only
)
All transactions running on sessions on the connected
system are immediately terminated abnormally. This can
lead to unpredictable results and should be used only in
exceptional circumstances.
In some extreme cases (for example, if an error occurs
during backout processing), CICS might terminate
abnormally.
FORCEPURGE replaces PURGE FORCE which is
retained only for compatibility purposes. You should use
FORCEPURGE in new applications.
FORCEUow (APPC parallel-session, CICS-to-CICS MRO,
and LU61 only)
All UOWs shunted due to the failure of this connection
are to be forced to back out or commit, as specified in
the ACTION option of the TRANSACTION definition. The
normal resynchronization process is to be partially
overridden: decisions are taken for any units of work that
are in-doubt due to a failure of the connection; but the
decisions are recorded and any data inconsistencies are
reported when the connection is next acquired.
INService
The system is in service; that is, it is available for use.
For an MRO connection, all sessions are placed in
service and the following occurs:
If both the issuing system and system “sysid” have
IRC open, and the issuing system has status
INSERVICE within system “sysid”, connections are
established and made available between the two
systems.
Otherwise, the status of the system (and the status
of the underlying sessions) is set INSERVICE, so
that when both systems have IRC open and are
INSERVICE with respect to each other, connections
are established. Note that INQUIRE indicates that
systems (and their underlying sessions) are
INSERVICE even though no connections can be
used.
The status of the underlying sessions for a system
is always the same as that for the system itself.
For an ISC system, the following occurs:
LU6.1 system (that is, links to “sysid” are through
intersystem communication)—all underlying
sessions are placed in service.
APPC system—causes the SNASVCMG sessions to
be placed in service thereby enabling the
connection subsequently to be established.
NORecovdata (
appc only
)
specifies that the normal resynchronization process is to
be overridden. NORECOVDATA forces in-doubt units of
work (according to the transaction definitions), targets
any resyncs that were outstanding for the connection,
and erases the logname previously received from the
partner system. The state of the connection is reset.
Note: You should use SET CONNECTION
NORECOVDATA only in exceptional
164 CICS Supplied Transactions