ISC/IRC system and mode entry statistics

The ISC/IRC system and mode entry statistics area of the DFHSTUP listing is for a CICS® system using intersystem communication. This provides summary statistics for the CICS intercommunication facility.

This section contains the following statistics:

System entry

ISC/IRC system entry: Resource statistics

The system entry statistics record information for both ISC and IRC connections. Some of the information is unique to each type of connection.

These statistics can be accessed online using the EXEC CICS COLLECT STATISTICS CONNECTION command, and are mapped by the DFHA14DS DSECT. For programming information about the EXEC CICS COLLECT STATISTICS command, see the CICS System Programming Reference manual.

This DSECT is to be used:

CICS always allocates a SEND session when sending an IRC request to another region. Either a SEND or RECEIVE session can be allocated when sending requests using LU6.1 ISC, and either a contention loser or a contention winner session can be allocated when sending requests using APPC.

In LU6.1, SEND sessions are identified as secondaries, and RECEIVE sessions are identified as primaries.

Table 70. ISC/IRC system entry: Resource statistics
DFHSTUP name Field name Description
Connection name A14CNTN corresponds to each system entry defined by a CONNECTION definition in the CSD, or by autoinstall.

Reset characteristic: not reset

 

Connection netname A14ESID is the name by which the remote system is known in the network--that is, its applid.

Reset characteristic: not reset

 

Access Method / Protocol A14ACCM is the communication access method used for this connection. The values are:
  • X'01' =A14VTAM
  • X'02' =A14IRC
  • X'03' =A14XM
  • X'04' =A14XCF

 

  A14EFLGS is the communication protocol used for this connection. The values are:
  • X'01' =A14APPC
  • X'02' =A14LU61
  • X'03' =A14EXCI
Reset characteristic: not reset

 

Autoinstalled Connection Create Time A14AICT is the time at which this connection was autoinstalled, in local time. The time is expressed as hours:minutes:seconds.decimals. The DSECT field contains the value as a store clock (STCK). This field is only applicable to an autoinstalled APPC connection. For all other types of connection the value will be nulls (x'00').

 

Autoinstalled Connection Delete Time A14AIDT is the time at which this connection was deleted, in local time. The time is expressed as hours:minutes:seconds.decimals. The DSECT field contains the value as a store clock (STCK). This field is only set if this is an autoinstalled APPC connection that has been deleted, that is, this field is only set in an unsolicited statistics (USS) record. For all other types of connection and all other types of statistics record the value will be nulls (x'00').

 

Send session count A14ESECN is the number of SEND sessions for this connection. This field applies to MRO and LU6.1 connections only.

Reset characteristic: not reset

 

Receive session count A14EPRMN is the number of RECEIVE sessions for this connection. This field applies to MRO and LU6.1 connections only.

Reset characteristic: not reset

 

AIDs in chain A14EALL is the current number of automatic initiate descriptors (AIDs) in the AID chain.

Reset characteristic: not reset

 

Generic AIDs in chain A14ESALL is the current number of automatic initiate descriptors (AIDs) that are waiting for a session to become available to satisfy an allocate request.

Reset characteristic: not reset

 

ATIs satisfied by contention losers A14ES1 is the number of ATI requests (queued allocates) that have been satisfied by contention loser sessions (primaries for LU6.1). This is always zero for IRC system entries. For APPC, this field is zero when written to SMF, but if accessed online using the EXEC CICS COLLECT STATISTICS command, this field is the summation of the equivalent mode entry statistics.

Reset characteristic: reset to zero

 

ATIs satisfied by contention winners A14ES2 is the number of ATI requests (queued allocates) that have been satisfied by contention winner sessions (secondaries for LU6.1). This field is the total ATIs when the system entry is for IRC. For APPC, this field is zero when written to SMF, but if accessed online using the EXEC CICS COLLECT STATISTICS command, this field is the summation of the equivalent mode entry statistics.

Reset characteristic: reset to zero

 

Current contention losers A14E1RY is the number of contention loser sessions (primaries for LU6.1) that are currently in use.

Reset characteristic: not reset

 

Peak contention losers A14E1HWM is the peak number of contention loser sessions (primaries for LU6.1) that were in use at any one time.

Reset characteristic: reset to current value

 

Current contention winners A14E2RY is the number of contention winner sessions (secondaries for LU6.1) that are currently in use.

Reset characteristic: not reset

 

Peak contention winners A14E2HWM is the peak number of contention winner sessions (secondaries for LU6.1) that were in use at any one time.

Reset characteristic: reset to current value

 

Total bids sent A14ESBID is the total number of bids that were sent. A bid is sent on an LU6.1 RECEIVE session only. This field is always zero for IRC entries. For APPC, this field is zero when written to SMF, but if accessed online using the EXEC CICS COLLECT STATISTICS command, this field is the summation of the equivalent mode entry statistics.

Reset characteristic: reset to zero

 

Current bids in progress A14EBID is the number of bids currently in progress. A bid is sent on an LU6.1 RECEIVE session only. This field is always zero for IRC system entries. For APPC, this field is zero when written to SMF, but if accessed online using the EXEC CICS COLLECT STATISTICS command, this field is the summation of the equivalent mode entry statistics.

Reset characteristic: not reset

 

Peak bids in progress A14EBHWM is the peak number of bids that were in progress at any one time. A bid is sent on an LU6.1 RECEIVE session only.

Reset characteristic: reset to current value

 

Peak outstanding allocates

For more information see 1

A14ESTAM is the peak number of allocate requests that were queued for this system. For APPC this field is incremented only for generic allocate requests.

Reset characteristic: reset to current value

 

Total number of allocates

For more information see 1

A14ESTAS is the number of allocate requests against this system. For APPC:
  • This field is incremented only for generic allocate requests
  • If accessed online using the EXEC CICS COLLECT STATISTICS command, this field also contains the summation of the equivalent mode entry statistics.

Reset characteristic: reset to zero

 

Queued allocates

For more information see 1

A14ESTAQ is the current number of queued allocate requests against this system. An allocate is queued due to a session not being available at this moment. This includes waiting for a bind, a bid, or all sessions are currently in use. For APPC:
  • This field is incremented only for generic allocate requests
  • If accessed online using the EXEC CICS COLLECT STATISTICS command, this field also contains the summation of the equivalent mode entry statistics.

Reset characteristic: not reset

 

Failed link allocates

For more information see 1

A14ESTAF is the number of allocate requests that failed due to the connection being released, out of service, or with a closed mode group. For APPC:
  • This field is incremented only for generic allocate requests
  • If accessed online using the EXEC CICS COLLECT STATISTICS command, this field also contains the summation of the equivalent mode entry statistics.

Reset characteristic: reset to zero

 

Failed allocates due to sessions in use

For more information see 1

A14ESTAO is the number of allocate requests that failed due to a session not being currently available for use. These requests get SYSBUSY responses to the allocate. This field is incremented for allocates failing with an AAL1 abend code.

For APPC only:

  • This field is only incremented for generic allocate requests
  • If accessed online using the EXEC CICS COLLECT STATISTICS command, this field also contains the summation of the equivalent mode entry statistics.

Reset characteristic: reset to zero

 

Maximum queue time (seconds) A14EMXQT is the MAXQTIME specified on the CONNECTION definition. This value represents the maximum time you require to process an allocate queue on this connection. If the allocate queue would take greater than this time to process then the entire queue would be purged. This value only takes effect if the QUEUELIMIT value (A14EALIM) has been reached.

Reset characteristic: not reset

 

Allocate queue limit A14EALIM is the QUEUELIMIT parameter specified on the CONNECTION definition. If this value is reached then allocates are rejected. Start of changeIf a QUEUELIMIT of No has been set, this field has a value of -1.End of change

Reset characteristic: not reset

 

Number of QUEUELIMIT allocates rejected A14EALRJ the total number of allocates rejected due to the QUEUELIMIT value (A14EALIM) being reached.

Reset characteristic: reset to zero

 

Number of MAXQTIME allocate queue purges A14EQPCT is the total number of times an allocate queue has been purged due to the MAXQTIME value (A14EMXQT). A queue is purged when the total time it would take to process a queue exceeds the MAXQTIME value.

Reset characteristic: reset to zero

 

Number of MAXQTIME allocates purged A14EMQPC is the total number of allocates purged due to the queue processing time exceeding the MAXQTIME value (A14EMXQT).

If sessions have not been freed after this mechanism has been invoked then any subsequent allocate requests are purged and included in this statistic as the MAXQTIME purging mechanism is still in operation.

Reset characteristic: reset to zero

 

Number of XZIQUE allocates rejected A14EZQRJ is the total number of allocates rejected by the XZIQUE exit.

Reset characteristic: reset to zero

 

Number of XZIQUE allocate queue purges A14EZQPU is the total number of allocate queue purges that have occurred at XZIQUE request for this connection.

If accessed online using the EXEC CICS COLLECT STATISTICS command, this field additionally contains the summation of the equivalent mode entry statistics.

Reset characteristic: reset to zero

 

Number of XZIQUE allocates purged A14EZQPC is the total number of allocates purged due to XZIQUE requesting that queues should be purged (A14EZQPU) for this connection.

If XZIQUE has not overridden this mechanism (by response) then any subsequent allocate requests are purged and included in this statistic as the XZIQUE purging mechanism is still in operation.

If accessed online using the EXEC CICS COLLECT STATISTICS command, this field additionally contains the summation of the equivalent mode entry statistics.

Reset characteristic: reset to zero

 

File control (FC) function shipping requests A14ESTFC is the number of file control requests for function shipping.

Reset characteristic: reset to zero

 

Interval control IC) function shipping requests A14ESTIC is the number of interval control requests for function shipping.

Reset characteristic: reset to zero

 

Program control (PC) function shipping requests A14ESTPC is the number of program control link requests for function shipping.

Reset characteristic: reset to zero

 

Transient data (TD) function shipping requests A14ESTTD is the number of transient data requests for function shipping.

Reset characteristic: reset to zero

 

Temporary storage (TS) function shipping requests A14ESTTS is the number of temporary storage requests for function shipping.

Reset characteristic: reset to zero

 

DL/I function shipping requests A14ESTDL is the number of DL/I requests for function shipping.

Reset characteristic: reset to zero

 

Terminal sharing requests A14ESTTC is the number of transaction routing commands. This number is incremented on both regions when the transaction is routed, and when the terminal I/O request is routed between regions. This field is not supported for LU6.1.

Reset characteristic: reset to zero

 

NOT IN THE DFHSTUP REPORT A14GACT is the time at which this connection was autoinstalled, in GMT. The time is expressed as hours:minutes:seconds.decimals. The DSECT field contains the value as a store clock (STCK). This field is only applicable to an autoinstalled APPC connection. For all other types of connection the value will be nulls (x'00').

Reset characteristic: not reset

 

NOT IN THE DFHSTUP REPORT A14GADT is the time at which this connection was deleted, in GMT. The time is expressed as hours:minutes:seconds.decimals. The DSECT field contains the value as a store clock (STCK). This field is only set if this is an autoinstalled APPC connection that has been deleted, that is, this field is only set in an unsolicited statistics (USS) record. For all other types of connection and all other types of statistics record the value will be nulls (x'00').

Reset characteristic: not reset

 

Start of changeTerminal-sharing channel requestsEnd of change Start of changeA14ESTTC_CHANNELEnd of change Start of changeis the number of terminal-sharing channel requests.

Reset characteristic: reset to zero

End of change
Start of changeNumber of bytes sent on terminal-sharing channel requestsEnd of change Start of changeA14ESTTC_CHANNEL_SENTEnd of change Start of changeis the number of bytes sent on terminal-sharing channel requests. This is the total amount of data sent on the connection, including any control information.

Reset characteristic: reset to zero

End of change
Start of changeNumber of bytes received on terminal-sharing channel requestsEnd of change Start of changeA14ESTTC_CHANNEL_RCVDEnd of change Start of changeis the number of bytes received on terminal-sharing channel requests. This is the total amount of data sent on the connection, including any control information.

Reset characteristic: reset to zero

End of change
Start of changeProgram control function-shipping LINK requests, with channelsEnd of change Start of changeA14ESTPC_CHANNELEnd of change Start of changeis the number of program control LINK requests, with channels, for function shipping. This is a subset of the number in A14ESTPC.

Reset characteristic: reset to zero

End of change
Start of changeNumber of bytes sent on LINK channel requestsEnd of change Start of changeA14ESTPC_CHANNEL _SENTEnd of change Start of changeis the number of bytes sent on LINK channel requests. This is the total amount of data sent on the connection, including any control information.

Reset characteristic: reset to zero

End of change
Start of changeNumber of bytes received on LINK channel requestsEnd of change Start of changeA14ESTPC_CHANNEL _RCVDEnd of change Start of changeis the number of bytes received on LINK channel requests. This is the total amount of data received on the connection, including any control information.

Reset characteristic: reset to zero

End of change
Start of changeInterval control function-shipping START requests, with channelsEnd of change Start of changeA14ESTIC_CHANNELEnd of change Start of changeis the number of interval control START requests, with channels, for function shipping. This is a subset of the number in A14ESTIC.

Reset characteristic: reset to zero

End of change
Start of changeNumber of bytes sent on START channel requestsEnd of change Start of changeA14ESTIC_CHANNEL_SENTEnd of change Start of changeis the number of bytes sent on START channel requests. This is the total amount of data sent on the connection, including any control information.

Reset characteristic: reset to zero

End of change
Start of changeNumber of bytes received on START channel requestsEnd of change Start of changeA14ESTIC_CHANNEL_RCVDEnd of change Start of changeis the number of bytes received on START channel requests. This is the total amount of data sent on the connection including any control information.

Reset characteristic: reset to zero

End of change
Notes:
  1. For APPC only, if an allocate request does not specify a mode group (so it is a generic allocate request), CICS takes the first mode group within the sessions available, and the statistics for these allocates are reported against the system entry and against the mode entry (in the statistic 'Total generic allocates satisfied'). If an allocate specifically requests a mode entry (so it is a specific allocate request), the statistics for these allocates go into that mode entry.

ISC/IRC system entry: Summary resource statistics

Summary statistics are not available online.

Table 71. ISC/IRC system entry: Summary resource statistics
DFHSTUP name Description
Connection name is the system entry defined by the CONNECTION definition in the CSD or by autoinstall.

 

Connection netname is the name by which the remote system is known in the network--that is, its applid.

 

Access Method / Protocol is the combined communication access method and protocol used for the connection.

 

Average autoinstalled connection time is the average autoinstalled connection time. This field applies to autoinstalled connections and is summarized from the unsolicited system entry statistics records only.

 

Send session count is the last value encountered for the SENDCOUNT specified on the CONNECTION definition. This field applies to MRO and LU6.1 connections only.

 

Receive session count is the last value encountered for the RECEIVECOUNT specified on the CONNECTION definition. This field applies to MRO, LU6.1, and EXCI connections only.

 

Average number of AIDs in chain is the average number of automatic initiate descriptors (AIDs) in the AID chain.

 

Average number of generic AIDs in chain is the average number of AIDs waiting for a session to become available to satisfy an allocate request.

 

ATIs satisfied by contention losers is the total number of ATI requests (queued allocates) that have been satisfied by contention loser sessions (primaries for LU6.1). This is always zero for IRC system entries.

 

ATIs satisfied by contention winners is the total number of ATI requests (queued allocates) that have been satisfied by contention winner sessions (secondaries for LU6.1). This field is the total ATIs when the system entry is for IRC.

 

Peak contention losers is the peak number of contention loser sessions (primaries for LU6.1) that were in use at any one time.

 

Peak contention winners is the peak number of contention winner sessions (secondaries for LU6.1) that were in use at any one time.

 

Total bids sent is the total number of bids that were sent. A bid is sent on an LU6.1 RECEIVE session only. This field is always zero for IRC and APPC system entries.

 

Average bids in progress is the average number of bids in progress. A bid is sent on an LU6.1 RECEIVE session only. This field is always zero for IRC and APPC system entries.

 

Peak bids in progress is the peak number of bids that were in progress at any one time. A bid is sent on an LU6.1 RECEIVE session only. This field is always zero for IRC and APPC system entries.

 

Peak outstanding allocates

For more information see 1

is the peak number of allocation requests that were queued for this system. For APPC this field contains only generic allocate requests.

 

Total number of allocates

For more information see 1

is the total number of allocate requests against this system. For APPC this field contains only generic allocate requests.

 

Average number of queued allocates

For more information see 1

is the average number of queued allocate requests against this system. For APPC this field is incremented only for generic allocate requests.

 

Failed link allocates

For more information see 1

is the total number of allocate requests that failed due to the connection being released, out of service, or with a closed mode group. For APPC this field is incremented only for generic allocate requests.

 

Failed allocates due to sessions in use

For more information see 1

is the total number of allocate requests that failed due to a session not being currently available for use. These requests get SYSBUSY responses to the allocate. This field is incremented for allocates failing with an AAL1 abend code. For APPC this field is incremented only for generic allocate requests.

 

Maximum queue time (seconds) is the last non-zero value encountered for the MAXQTIME parameter specified on the CONNECTION definition. This value represents the maximum time you require to process an allocate queue on this connection. If the allocate queue would take greater than this time to process the entire queue would be purged. This value only takes effect if the QUEUELIMIT value has been reached.

 

Allocate queue limit Start of changeis the last value encountered for the QUEUELIMIT parameter specified on the CONNECTION definition. If this value is set, allocates are rejected when the value is reached. End of change

 

Number of QUEUELIMIT allocates rejected is the is the total number of allocates rejected due to the QUEUELIMIT value being reached.

 

Number of MAXQTIME allocate queue purges is the total number of times an allocate queue has been purged due to the MAXQTIME value. A queue is purged when the total time it would take to process a queue exceeds the MAXQTIME value.

 

Number of MAXQTIME allocates purged is the total number of allocates purged due to the queue processing time exceeding the MAXQTIME value.

If sessions have not been freed after this mechanism has been invoked then any subsequent allocate requests are purged and included in this statistic as the MAXQTIME purging mechanism is still in operation.

 

Number of XZIQUE allocates rejected is the total number of allocates rejected by the XZIQUE exit

 

Number of XZIQUE allocate queue purges is the total number of allocate queue purges that have occurred at XZIQUE request for this connection.

 

Number of XZIQUE allocates purged is the total number of allocates purged due to XZIQUE requesting that queues should be purged for this connection.

If XZIQUE has not overridden this mechanism (by response) then any subsequent allocate requests are purged and included in this statistic as the XZIQUE purging mechanism is still in operation.

 

File control (FC) function shipping requests is the total number of file control requests for function shipping.

 

Interval control (IC) function shipping requests is the total number of interval control requests for function shipping.

 

Program control (PC) function shipping requests is the total number of program control link requests for function shipping.

 

Transient data (TD) function shipping requests is the total number of transient data requests for function shipping.

 

Temporary storage (TS) function shipping requests is the total number of temporary storage requests for function shipping.

 

DL/I function shipping requests is the total number of DL/I requests for function shipping.

 

Terminal sharing requests is the total number of transaction routing commands. This number is incremented on both regions when the transaction is routed, and when the terminal I/O request is routed between regions. This field is not supported for LU6.1.

 

Notes:
  1. For APPC only, if an allocate request does not specify a mode group (so it is a generic allocate request), CICS takes the first mode group within the sessions available, and the statistics for these allocates are reported against the system entry and against the mode entry (in the statistic 'Total generic allocates satisfied'). If an allocate specifically requests a mode entry (so it is a specific allocate request), the statistics for these allocates go into that mode entry.

Mode entry

ISC mode entry: Resource statistics

These statistics are collected only if you have an APPC connection defined in your CICS region, and they are then produced for each mode group defined in that connection. These statistics cannot be accessed online using the EXEC CICS COLLECT STATISTICS command. They are only produced for offline processing (written to SMF).

These statistics are mapped by the DFHA20DS DSECT. This DSECT is also used to map the mode entry totals records.

Table 72. ISC mode entry: Resource statistics
DFHSTUP name Field name Description
NOT IN THE DFHSTUP REPORT A20SYSN is the name of the APPC connection/system that owns this mode entry. It corresponds to the system entry, defined by a CONNECTION definition in the CSD or by autoinstall.

Reset characteristic: not reset

 

Mode name A20MODE is the mode group name related to the the intersystem connection name above (A20SYSN). This corresponds to modename in the sessions definition.

Reset characteristic: not reset

 

ATIs satisfied by contention losers A20ES1 is the number of ATI requests (queued allocates) that have been satisfied by "contention loser" sessions belonging to this mode group.

Reset characteristic: reset to zero

 

ATIs satisfied by contention winners A20ES2 is the number of ATI requests (queued allocates) that have been satisfied by "contention winner" sessions belonging to this mode group.

Reset characteristic: reset to zero

 

Current contention losers A20E1RY is the current number of "contention loser" sessions.

Reset characteristic: not reset

 

Peak contention losers A20E1HWM is the peak number of "contention loser" sessions belonging to this mode group that were in use at any one time. There can be sessions not defined (by the MAXIMUM parameter of CEDA) as "contention winners" or "contention losers", and their states are dynamically decided at bind time.

Reset characteristic: reset to current value

 

Current contention winners A20E2RY is the current number of "contention winner" sessions.

Reset characteristic: not reset

 

Peak contention winners A20E2HWM is the peak number of "contention winner" sessions belonging to this mode group that were in use at any one time. There can be sessions not defined (by the MAXIMUM= parameter of CEDA) as "contention winners" or "contention losers", and their states are dynamically decided at bind time.

Reset characteristic: reset to current value

 

Total bids sent A20ESBID is the number of bids that were sent on the sessions defined to this mode group. A bid is sent on an APPC "contention loser" session when there are no "contention winner" sessions available to allocate.

Reset characteristic: reset to zero

 

Current bids in progress A20EBID is the number of bids that are in progress on the sessions defined to this mode group. A bid is sent on an APPC "contention loser" session when there are no "contention winner" sessions available to allocate.

Reset characteristic: not reset

 

Peak bids in progress A20EBHWM is the peak number of bids that were in progress at any one time, on the sessions defined to this mode group. A bid is sent on an APPC "contention loser" session when there are no "contention winner" sessions available to allocate.

Reset characteristic: reset to current value

 

Peak outstanding allocates

For more information see 1

A20ESTAM is the peak number of allocation requests that were queued for this mode group.

Reset characteristic: reset to current value

 

Total specific allocate requests

For more information see 1

A20ESTAS is the number of specific allocate requests against this mode group.

Reset characteristic: reset to zero

 

Total specific allocates satisfied

For more information see 1

A20ESTAP is the number of specific allocates satisfied by this mode group.

Reset characteristic: reset to zero

 

 

Total generic allocates satisfied A20ESTAG is the number of generic allocates satisfied from this mode group. The allocates are made for APPC without the mode group being specified.

Reset characteristic: reset to zero

 

Queued allocates

For more information see 1

A20ESTAQ is the current number of queued specific allocate requests against this mode group. An allocate is queued due to a session in this mode group not being available at this moment. This includes waiting for a bind, a bid, or all sessions are currently in use.

Reset characteristic: not reset

 

Failed link allocates

For more information see 1

A20ESTAF is the number of specific allocate requests that failed due to the connection being released, out of service, or with a closed mode group.

Reset characteristic: reset to zero

 

Failed allocates due to sessions in use

For more information see 1

A20ESTAO is the number of specific allocate requests that failed due to a session not being currently available for use in this mode group. These requests get SYSBUSY responses to the allocate. This field is incremented for allocates failing with an AAL1 abend code.

Reset characteristic: reset to zero

 

 

Number of XZIQUE allocate queue purges A20EQPCT is the total number of allocate queue purges that have occurred at XZIQUE request for this mode entry.

Reset characteristic: reset to zero

 

Number of XZIQUE allocates purged A20EZQPC is the total number of allocates purged due to XZIQUE requesting that queues should be purged (A20EQPCT) for this mode entry.

If XZIQUE has not overridden this mechanism (by response) then any subsequent allocate requests are purged and included in this statistic as the XZIQUE purging mechanism is still in operation.

Reset characteristic: reset to zero

 

Maximum session count A20ELMAX is the maximum number of sessions that the definition of the session group permits.

Reset characteristic: not reset

 

Current maximum session count A20EMAXS is the current number of sessions in the group (the number "bound").

Reset characteristic: not reset

 

Maximum contention winners acceptable A20EMCON is the maximum number of sessions that the definition of the session group permits to be contention winners.

Reset characteristic: not reset

 

Current contention losers in use A20ECONL is the number of contention loser sessions that are currently in use.

Reset characteristic: not reset

 

Current contention winners in use A20ECONW is the number of contention winner sessions that are currently in use.

Reset characteristic: not reset

 

Notes:
  1. This field is incremented when an allocate is issued against a specific mode group. If a generic allocate request is made, the equivalent system entry statistics only are incremented.

ISC mode entry: Summary resource statistics

Summary statistics are not available online.

These statistics are collected only if you have an APPC connection defined in your CICS region, and they are then produced for each mode group defined in that connection.

Table 73. ISC mode entry: Summary resource statistics
DFHSTUP name Description
Connection name is the name of the APPC connection/system that owns this mode entry.

 

Mode name is the mode group name related to the intersystem connection name above. It corresponds to the modename in the sessions definition.

 

ATIs satisfied by contention losers is the total number of ATI requests (queued allocates) that have been satisfied by "contention loser" sessions belonging to this mode group.

 

ATIs satisfied by contention winners is the total number of ATI requests (queued allocates) that have been satisfied by "contention winner" sessions belonging to this mode group.

 

Peak contention losers is the peak number of "contention loser" sessions belonging to this mode group that were in use at any one time. There can be sessions not defined (by the MAXIMUM= parameter of CEDA) as "contention winners" or "contention losers", and their states are dynamically decided at bind time.

 

Peak contention winners is the peak number of "contention winner" sessions belonging to this mode group that were in use at any one time. There can be sessions not defined (by the MAXIMUM= parameter of CEDA) as "contention winners" or "contention losers", and their states are dynamically decided at bind time.

 

Total bids sent is the total number of bids that were sent on the sessions defined to this mode group. A bid is sent on an APPC "contention loser" session when there are no "contention winner" sessions available to allocate.

 

Average bids in progress is the average number of bids in progress.

 

Peak bids in progress is the peak number of bids that were in progress at any one time, on the sessions defined to this mode group. A bid is sent on an APPC "contention loser" session when there are no "contention winner" sessions available to allocate.

 

Peak outstanding allocates

For more information see 1

is the peak number of allocation requests that were queued for this mode group.

 

Total specific allocate requests

For more information see 1

is the total number of specific allocate requests against this mode group.

 

Total specific allocates satisfied

For more information see 1

is the total number of specific allocates satisfied by this mode group.

 

Total generic allocates satisfied is the total number of generic allocates satisfied from this mode group. The allocates are made for APPC without the mode group being specified.

 

Average number of queued allocates

For more information see 1

is the average number of queued specific allocate requests against this mode group. An allocate is queued due to a session in this mode group not being available at this moment. This includes waiting for a bind, a bid, or all sessions are currently in use.

 

Failed link allocates

For more information see 1

is the total number of specific allocate requests that failed due to the connection being released, out of service, or with a closed mode group.

 

Failed allocates due to sessions in use

For more information see 1

is the total number of specific allocate requests that failed due to a session not being currently available for use in this mode group. These requests get SYSBUSY responses to the allocate. This field is incremented for allocates failing with an AAL1 abend code.

 

Number of XZIQUE allocate queue purges is the total number of allocate queue purges that have occurred at XZIQUE request for this mode entry.

 

Number of XZIQUE allocates purged is the total number of allocates purged due to XZIQUE requesting that queues should be purged (Number of XZIQUE allocate queue purges) for this mode entry.

If XZIQUE has not overridden this mechanism (by response) then any subsequent allocate requests are purged and included in this statistic as the XZIQUE purging mechanism is still in operation.

 

Notes:
  1. The next three fields only contain allocates against specific mode groups. Generic allocate requests are contained in the equivalent system entry statistics.

Related reference
Back to full list of statistics and DFHSTUP reports
Appendix A. CICS statistics tables
Interpreting these statistics
Interpreting ISC/IRC system and mode entry statistics
DFH0STAT reports for these statistics
Connections and Modenames Report
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