z/OS MVS System Messages, Vol 3 (ASB-BPX)
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ATB121I

z/OS MVS System Messages, Vol 3 (ASB-BPX)
SA38-0670-00

ATB121I
hh.mm.ss APPC DISPLAY [id]

Explanation

In the message, the following appears:
ACTIVE LU'S    OUTBOUND LU'S    PENDING LU'S    TERMINATING LU'S
aaaa    ooooo    ppppp    ttttt
SIDEINFO=side_dsetname
[LLUN=luname    SCHED=schdname    BASE=xxx    NQN=xxx
    STATUS=stat    PARTNERS=nnnnn    TPLEVEL=tplvel    SYNCPT=sss
    GRNAME=grname    RMNAME=rmname
    TPDATA=dsetname
    [ PLUN=pluname    ]]

When the operator enters a DISPLAY APPC,LU command, this message displays information about local and partner LUs.

The first four lines of the message always appear.

In the first four lines of the message text:
hh.mm.ss
The hour, minute, and second at which the display command was processed.
id
A decimal identifier used with the CONTROL C,D command to cancel status displays that are written on typewriter or printer consoles or displayed inline on a display console. This identifier does not appear when the display is presented in a display area on a display console.
ACTIVE LU'S aaaa
The number of APPC/MVS logical units (LU) with ACTIVE status. An LU is active when it is fully initialized and capable of processing both inbound and outbound requests.
OUTBOUND LU'S ooooo
The number of APPC/MVS LUs with OUTBOUND status. An LU is OUTBOUND when the transaction scheduler that owns the LU halts all transaction requests to the LU.
PENDING LU'S ppppp
The number of APPC/MVS LUs with PENDING status. An LU is pending when the system is initializing the LU.
TERMINATING LU'S ttttt
The number of APPC/MVS LUs with TERMINATING status. A logical unit is ending when a SET command removes it from the system and the system allows active conversations on the LUs sessions to complete.
SIDEINFO=side_dsetname
The name of the currently active side information file. The side information file is a Virtual Storage Access Method (VSAM) key sequenced data set containing the side information. If no side information file was specified in the APPCPMxx parmlib member this value will be *NONE*.

Lines 5-8 of the message text:

Lines 5-8 appear in the message text if the DISPLAY APPC,LU command includes the LIST parameter. Lines 5-8 are repeated for each local LU that is defined to APPC/MVS or selected by optional keyword parameters.
LLUN=luname
The local logical unit name.
SCHED=schdname
The name of the APPC/MVS transaction scheduler that schedules transactions for this LU. It is specified on the SCHED keyword in the current parmlib configuration. If there is no scheduler associated with the LU (that is, the NOSCHED option is specified in the parmlib configuration), this value will be *NONE*.
BASE=xxx
xxx is one of the following:
YES
The logical unit is a base logical unit.
NO
The logical unit is not the base logical unit.
NQN=xxx
xxx is one of the following:
YES
Any Allocate request originating from this LU may specify a network-qualified partner LU name where the LU name does not have to be unique across interconnected networks.
NO
Any Allocate request originating from this LU must specify a partner LU name (network-qualified or not) where the LU name must be unique across interconnected networks.
STATUS=stat
The status of the logical unit, which is one of the following:
ACTIVE
The logical unit is active.
OUTBOUND
The logical unit is outbound.
PENDING
The logical unit is pending.
TERMINATING
The logical unit is ending.
PARTNERS=nnnnn
The number of LUs with at least one session bound to LU luname. The maximum value is 99999.
TPLEVEL=tplvel
The transaction program (TP) level specified in parmlib for this LU, which is one of the following:
SYSTEM
The TP is available to all users defined to LU luname. This is the default level.
GROUP
The TP is available to a group defined to LU luname.
USER
The TP is available to an individual user defined to LU luname.
SYNCPT=sss
Specifies whether the local LU's resource manager exits are set with RRS and the LU is capable of supporting protected conversations (that is, conversations with a synchronization level of Syncpt). sss is one of the following:
YES
The local LU is registered with RRS and is capable of supporting protected conversations.
NO
The local LU either is not registered with RRS at the current time, or is not capable of supporting protected conversations because of one of the following:
  • The VTAM® APPL definition for the local LU does not specify SYNCLVL=SYNCPT and ATNLOSS=ALL
  • The status of the local LU is pending
  • RRS is not active.
  • An internal APPC/MVS error caused the local LU to become unregistered as a resource manager.
GRNAME=grname
grname is the generic resource name with which the LU will register or has registered. The generic resource name identifies a set of LUs that provide the same function. Sessions initiated using a generic resource name are established with one of the LUs mapped to the generic resource name. This name is specified on the GRNAME parameter of the LUADD statement in the APPCPMxx parmlib member. If the GRNAME parameter was not specified in APPCPMxx, this value will be *NONE*.
RMNAME=rmname
The APPC/MVS-generated resource manager name for the LU, if the LU is registered as a communications resource manager with RRS, and is capable of supporting protected conversations. If SYNCPT=NO appears in the display, this value will be *NONE*.
TPDATA=dsetname
A 1 to 44 character name for a data set that contains the TP profile for LU luname.

Line 9 of the message text:

Line 9 appears if the DISPLAY APPC,LU command includes the ALL parameter. Line 9 appears once for either:
  • Each partner LU with at least one session bound to LU luname
  • The partner LUs specified on the PLUN keyword.
PLUN=pluname
The partner LU name. This name is network-qualified if the network ID is known.

System action

The system continues processing.

Module

ATBCODP

Source

APPC/MVS

Routing Code

2

Descriptor Code

5

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