Reference: IMS exceptions
The following table contains an alphabetical list of the OMEGAMON for IMS exceptions. The table includes a short description of what activity each exception monitors and the name of the exception group.
Note: In the following table, the term "queue length" refers to the difference between ENQ and DEQ
counts.
| Exception ID | Description | Exception group |
|---|---|---|
| ABUF | Displays if sequential buffering storage utilization is > nn%. | Pools (Other) |
| ACBH | Displays if ACBLIB data set I/O rate is > nn per second. | I/O Rates (Data sets) |
| ACEA | Displays if utilization is > nn% for the communication external subsystem pool. | Pools (CES) |
| ACIO | Displays if the communications I/O pool (CIOP) utilization is > nn%. | Pools (CIO) |
| ACWA | Displays if the communications work area pool (CWAP) utilization is > nn%. | Pools (CWA) |
| ADBH | Displays if Application database call count is > nn. The
default value is 100. Note: This exception is only available for IMS v10 and higher.
|
Application Execution (AE) |
| ADBW | Displays if database work pool utilization is > nn%. | Pools (Other) |
| ADHI | Displays if area DASD I/O per second is > nn. The value of nn is the average DASD read + write rate for a DEDB area within a dataspace. | Fast Path (High) |
| ADLO | Displays if area DASD I/O per second is < nn. The value of nn is the average DASD read + write rate for a DEDB area within a dataspace. | Fast Path (Low) |
| ADMB | Displays if database management block (DMB) pool utilization is > nn%. | Pools (DMB) |
| ADSU | Displays if the data entry database (DEDB) area is unavailable. | Fast Path (Alerts) |
| AEPC | Displays if the extended PCB pool utilization is > nn% for IMS systems that were generated with Fast Path. | Pools (Other) |
| AESH | Displays if Application External Subsystem Attach Facility (ESAF)
call count is > nn. The default value is 100. Note: This exception is only available for IMS
v10 and higher.
|
Application Execution (AE) |
| AETH | Displays if Application elapsed time in milliseconds is > nn.
The default value is 10. Note: This exception is only available for IMS v10 and
higher.
|
Application Execution (AE) |
| AFRE | Displays if the fetch request element (FRE) pool utilization is >
nn%. There is no such thing as an FRE pool, but for convenience you can think of FRE that
way. Use the IMS FRE= parameter to specify the number of fixed
FREs to allocate when IMS builds the message format block pool
(MFP). If all of the fixed FREs are ever in use at the same time, the AFRE exception shows the pool
as 100% utilized. For more FREs, IMS must carve space out of
the MFP buffer pool. These FREs are dynamic and are available as long as IMS is using them. Note: The FREP command displays the number of dynamic FREs
that IMS allocates.
|
Pools (Other) |
| AHIO | Displays if the high I/O pool (HIOP) utilization is > nn%. | Pools (Other) |
| AIOH | Displays if Application Total I/O count is > nn. The default
value is 10. Note: This exception is only available for IMS v10 and higher.
|
Application Execution (AE) |
| ALMD | Displays if the long message data set utilization is > nn%. | Pools (Data Set Utilization) |
| AMFS | Displays if the message format services (MFS) pool utilization is > nn%. | Pools (Other) |
| AMSG | Displays if the message queue buffer pool utilization is > nn%. | Pools (Other) |
| AORH | Displays if Application OSAM I/O READ count is > nn. The
default value is 10. Note: This exception is only available for IMS v10 and higher.
|
Application Execution (AE) |
| APIE | Displays if the program isolation (PI) pool utilization is > nn%. | Pools (Other) |
| APSB | Displays if the active program specification block (PSB) pool utilization is > nn%. | Pools (PSB) |
| APSW | Displays if the PSB work pool (PSBW) utilization is > nn%. | Pools (PSB) |
| AQBD | Displays if the queue blocks data set utilization is > nn%. | Pools (Data Set Utilization) |
| ARAU | Displays if the receive any pool utilization is > nn%. | Pools (CIO) |
| ARCB | Displays if the receive any buffers in use is > nn. | Pools (CIO) |
| ARSP | Displays if the average response time > nn. | Response Time Analysis (RTA) |
| ASAP | Displays if the save area prefix (SAP) pool utilization is > nn%. | Pools (Other) |
| ASHI | Displays if the area dataspace I/O per second is > nn. The value of nn is the average dataspace read + write rate for a DEDB area within a dataspace. | Fast Path (High) |
| ASLO | Displays if the area dataspace I/O per second is < nn. The value of nn is the average dataspace read + write rate for a DEDB area within a dataspace. | Fast Path (Low) |
| ASMD | Displays if the short message data set utilization is > nn%. | Pools (Data Set Utilization) |
| AVRH | Displays if Application VSAM I/O READ count is > nn. The
default value is 10. Note: This exception is only available for IMS v10 and higher.
|
Application Execution (AE) |
| BLGH | Displays if the balancing group input is > nn. | Fast Path (High) |
| BQHI | Displays if the number of Fast Path available buffers for new PST use is > nn. | Fast Path (High) |
| BQLO | Displays if the Fast Path available buffers for new PST use are < nn. | Fast Path (Low) |
| CBHI | Displays if BMP region CPU utilization is > nn%. | CPU (High) |
| CBLO | Displays if BMP region CPU utilization is < nn%. | CPU (Low) |
| CCHI | Displays if control region CPU utilization is > nn%. | CPU (High) |
| CCLO | Displays if control region CPU utilization is < nn%. | CPU (Low) |
| CILO | Displays if the number of free control intervals in independent overflow for a DEDB area is < nn. This means that you might need to reorganize the database. | Fast Path (Low) |
| CILP | Displays if the percentage of free control intervals in independent overflow for a DEDB area is < nn%. The default value is 10. | Fast Path (Low) |
| CLHI | Displays if the IRLM region CPU utilization is > nn%. | CPU (High) |
| CLLO | Displays if the IRLM region CPU utilization is < nn%. | CPU (Low) |
| CMHI | Displays if the MPP region CPU utilization is > nn%. CPU utilization is the percentage of the total CPU that the MPP region used over the last OMEGAMON® cycle. CPU utilization ranges from 0% to 100% for all online processors in the complex. The default OMEGAMON cycle is five seconds. | CPU (High) |
| CMLO | Displays if the MPP region CPU utilization is < nn%. CPU utilization is the percentage of the total CPU that the MPP region used over the last OMEGAMON cycle. CPU initilization ranges from 0% to 100% for all online processors in the complex. The default OMEGAMON cycle is five seconds. | CPU (Low) |
| CPUA | Displays if the IMS CPU utilization is >= nn %. | CPU (Low) |
| CRHI | Displays if the DBRC region CPU utilization is > nn%. | CPU (High) |
| CRLO | Displays if the DBRC region CPU utilization is < nn%. | CPU (Low) |
| CSHI | Displays if the DLS region CPU utilization is > nn%. | CPU (High) |
| CSLO | Displays if the DLS region CPU utilization is < nn%. | CPU (Low) |
| CSVC | Displays if IMS control task is waiting in SVC code. | IMS Status (Alerts) |
| CUOW | Displays if one Fast Path region is in unit-of-work contention with another Fast Path region. | Fast Path (Alerts) |
| CVAH | Displays if LU 6.2 total active asynchronous conversations equal or exceed thresholds. | IMS Status (Other) |
| CVHI | Displays if LU 6.2 total active conversations equal or exceed thresholds. | IMS Status (Other) |
| CVSH | Displays if LU 6.2 total active synchronous conversations equal or exceed thresholds. | IMS Status (Other) |
| DBWE | Displays if an I/O error against a database occurred. | Databases (Alerts) |
| DCMN | Displays if IMS DC monitor is active. | Traces (Alerts) |
| DDHI | Displays if the dataspace DASD I/O per second is nn. The value of nn is the average dataspace read + write rate for a dataspace. | Fast Path (High) |
| DDLO | Displays if the dataspace DASD I/O per second is < nn. The value of nn is the average dataspace read + write rate for a dataspace. | Fast Path (Low) |
| DISP | Displays if the dispatching priority of OMEGAMON is = the dispatching priority of IMS. | IMS Status (Alerts) |
| DLTR | Displays if the DL/I trace table is on. | Traces (Alerts) |
| DMBE | Displays the names of the databases that have dynamic backout errors. | Databases (Alerts) |
| DMER | Displays if a Fast Path DEDB area has an I/O error. | Fast Path (Alerts) |
| DMFF | Displays if free space in DMB pool is fragmented. | Pools (Alerts) |
| DNRS | Displays if an I/O issued to a DASD device allocated to the IMS control region took longer than one OMEGAMON cycle to complete. | Resources (Alerts) |
| DRDY | Displays if DASD device drops ready. | Resources (Alerts) |
| DSHI | Displays if the dataspace I/O per second is nn. The value of nn is the average dataspace read + write rate. | Fast Path (High) |
| DSLO | Displays if the dataspace I/O per second is < nn. The value of nn is the average dataspace read + write rate. | Fast Path (Low) |
| DSPI | No areas are loaded in dataspace. | Fast Path (Alerts) |
| DSTR | Displays if dispatcher trace is on. | Traces (Alerts) |
| DSWP | Displays if a dependent region is swapped out. | Resources (Alerts) |
| ESNC | Displays if an external subsystem is defined to the control region, but not to any dependent region. | External Subsystem (Alerts) |
| ESND | Displays if an external subsystem is defined to a dependent region, but not to the control region. | External Subsystem (Alerts) |
| ESTH | Displays if the number of active threads for an external DB2® subsystem is nn. | External Subsystem (High) |
| FCIO | Displays if the largest free block of the communications I/O pool (CIOP) is < nn bytes. | Fragmentation (Low) |
| FCWA | Displays if the largest free block of the communications work area pool (CWAP) is < nn bytes. | Fragmentation (Low) |
| FDBW | Displays if the largest free block of the database work pool is < nn bytes. | Fragmentation (Low) |
| FDMB | Displays if the largest free block of the database management block (DMB) is < nn bytes. | Fragmentation (Low) |
| FEPC | Displays if the largest free block of the extended PCB pool is < nn bytes in IMS systems generated with Fast Path. | Fragmentation (Low) |
| FHIO | Displays if the largest free block of the high I/O pool (HIOP) is < nn bytes. | Fragmentation (Low) |
| FMFS | Displays if the largest free block of the message format services (MFS) pool is < nn bytes. | Fragmentation (Low) |
| FPSB | Displays if the largest free block of the PSB pool is < nn bytes. | Fragmentation (Low) |
| FPSW | Displays if the largest free block of the PSBW is < nn bytes. | Fragmentation (Low) |
| FPTR | Displays if a Fast Path region exists, there is activity in the FP region and the Fast Path trace is on. The exception requires an FPTRACE DD statement in the IMS Fast Path region to indicate that the Fast Path trace is on. | Traces (Alerts) |
| HSBH | Displays if the HSSP private area buffer pool usage is > nn%. | Fast Path (High) |
| HSBL | Displays if the HSSP private area buffer pool usage is < nn%. | Fast Path (Low) |
| IBHI | Displays if the BMP region I/O rate is > nn EXCPs per second over the last OMEGAMON cycle. | I/O Rates (Regions High) |
| IBLO | Displays if the BMP region I/O rate is < nn EXCPs per second over the last OMEGAMON cycle. | I/O Rates (Regions Low) |
| ICHI | Displays if the control region I/O rate is > nn EXCPs per second over the last OMEGAMON cycle. | I/O Rates (Regions High) |
| ICLO | Displays if the control region I/O rate is < nn EXCPs per second over the last OMEGAMON cycle. | I/O Rates (Regions Low) |
| ILHI | Displays if the IRLM region I/O rate is > nn EXCPs per second over the last OMEGAMON cycle. | I/O Rates (Regions High) |
| ILLO | Displays if the IRLM region I/O rate is < nn EXCPs per second over the last OMEGAMON cycle. | I/O Rates (Regions Low) |
| IMHI | Displays if the message processing region I/O rate is > nn EXCPs per second, during the last OMEGAMON cycle. The default OMEGAMON cycle is five seconds. | I/O Rates (Regions High) |
| IMLO | Displays if the message processing region I/O rate is < nn EXCPs per second, during the last OMEGAMON cycle. The default OMEGAMON cycle is five seconds. | I/O Rates (Regions Low) |
| INAC | Displays if IMS is inactive. | IMS Status (Alerts) |
| IORC | Displays if a device allocated to IMS is in I/O error recovery. | Resources (Alerts) |
| IRCS | Displays if the CSA usage in the IRLM is > nn% of MAXCSA. | Resources (High) |
| IRFC | Displays if the false contention rate is > 70 per second. Note: This
exception applies only to IRLM version 2.1 and higher versions.
|
Resources (High) |
| IRGC | Displays if the IRLM is not connected to a data sharing
group. Note: This exception applies only to z/OS® version 5.1,
5.2, and OS/390®.
|
Resources (Alerts) |
| IRHI | Displays if the DBRC region I/O rate is > nn EXCPs per second during the last OMEGAMON cycle. | I/O Rates (Regions High) |
| IRIN | Displays if the required IRLM is not available for IMS. Note: This exception applies only to IRLM version 2.1 and higher
versions.
|
Resources (Alerts) |
| IRLO | Displays if the DBRC region I/O rate is < nn EXCPs per second during the last OMEGAMON cycle. | I/O Rates (Regions Low) |
| IRQH | Displays if the number of IRLM locks by region exceeds the threshold. | I/O Rates (Regions Low) |
| IRRC | Displays if the real contention rate is > 70 per second. Note: This
exception applies only to IRLM version 2.1 and higher versions.
|
Resources (High) |
| IRRU | Displays if the IRLM RLE usage is > 70%. Note: This exception applies
only to IRLM version 2.1 and higher versions.
|
Resources (High) |
| IRTP | Displays if the IRLM pass-the-buck (PTB) trace is active. | Traces (Alerts) |
| IRTR | Displays if the IRLM resource handler (RH) trace is active. | Traces (Alerts) |
| ISHI | Displays if the DLS region I/O rate is > nn EXCPs per second during the last OMEGAMON cycle. | I/O Rates (Regions High) |
| ISLO | Displays if the DLS region I/O rate is < nn EXCPs per second during the last OMEGAMON cycle. | I/O Rates (Regions Low) |
| ITWH | Displays if the ITASKS waiting for dynamic SAPs are > nn. | Pools (Other) |
| LALO | Displays if the LSQA storage assurance is < nn K. | Virtual Storage (Low) |
| LDMB | Displays if the DMB pool blocks loaded <= nn%. | Pools (DMB) |
| LKTR | Displays if the lock trace is on. | Traces (Alerts) |
| LLBR | Displays if the OLDS buffer waits per second are > nn. | Logging (OLDS) |
| LLCH | Displays if the WADS checkwrite requests per second are > nn. | Logging (WADS High) |
| LLKW | Displays if the region status is WT-IRLM or WT-PIENQ and the lock wait elapsed time > nn. The default threshold is one second. | Long Lock Waits |
| LMGH | Displays if the long message data set I/O rate is > nn per second. | I/O Rates (Data Sets) |
| LMLO | Displays if the LSQA maximum free block size is < nn K. | Virtual Storage (Low) |
| LPEX | Displays if the the number of writes to WADS is > nn per second. | Logging (WADS High) |
| LPOQ | Displays if all logical terminals, except video-type, have an output queue length > nn. | LTERMS |
| LPOR | Displays if the OLDS reads (dynamic backout) are > nn per second. | Logging (OLDS) |
| LPOW | Displays if the OLDS writes are > nn per second. | Logging (OLDS) |
| LPSB | Displays if the PSB pool blocks loaded <= nn%. | Pools (PSB) |
| LSLO | Displays if the LSQA total free storage is < nn K. | Virtual Storage (Low) |
| LTOQ | Displays if a video-type, logical terminal has an output queue length > nn. | LTERMS |
| LTWA | Displays if the log tape write-ahead is not active. | Resources (Alerts) |
| LVOQ | Displays if a video-type, virtual terminal has an output queue length > nn. | LTERMS |
| MDHI | Displays if the message dequeue rate is > nn per second. | Message Processing (High) |
| MDLO | Displays if the message dequeue rate is < nn per second. | Message Processing (Low) |
| MFLD | Displays if the TMEMBER is in a flood condition which occurs if the number of TIBs in use is 100%. The number of TIBs in use reaches 100% if the TIBs in use equal the maximum TIB count. | IMS OTMA |
| MFSH | Displays if the MFS data set I/O rate is > nn per second. | I/O Rates (Data Sets) |
| MIRT | Displays the number of message inserts that the specified region did to the message queue. A sample MIRT message is MSG INSERT COUNT FOR REGION xxxxxxxx = nn, where xxxxxxxx is the transaction and nn is the count. The count field displays the number of get calls the region did to the message queue. If the count field remains constant and the nn value increases, it might indicate that the application program is in a loop. | Message Processing (High) |
| Mnnn | Displays dynamic exceptions you create by using the MSGD command.
They display if they detect special IMS message numbers
on the log. Note: You can see these exceptions only in the menu/command interface. For more
information, See the MSGD command in the IBM®
Tivoli®
OMEGAMON for IMS Realtime Commands Reference.
|
n/a |
| MPCH | Displays if the MPP region database calls are > nn. | Message Processing (High) |
| MSDI | Displays if an MSDB has an invalid packed field. IMS resets only the packed field if IMS restarts. | Fast Path (Alerts) |
| MSDO | Displays if an MSDB has an overflowing field. Note: IMS resets the overflowing field at the next synchronization
point.
|
Fast Path (Alerts) |
| MSGE | Displays if the ICNS command is not issued. | IMS Status (Alerts) |
| MTBR | Displays if the TIB rate for a TMEMBER is > nn. | IMS OTMA |
| MTBU | Displays if the percentage of TIBs in use for a TMEMBER is 70% or higher. | IMS OTMA |
| NACB | Displays if VTAM® ACB is not open. | IMS Status (Alerts) |
| NDIR | Displays if the systems programmer does not define the $$IMSDIR table. The NDIR analysis detects an undefined $$IMSDIR table and alerts you to the potential cause of any MFS overhead your system might be incurring. | Resources (Alerts) |
| NDRE | Displays if the $$IMSDIR table entry is not in the MFS format library. OMEGAMON did not find a $$IMSDIR table entry in the MFS format library; you are using critical storage incorrectly. | Resources (Alerts) |
| NILU | Displays if the IMSLU connection with APPC/MVS is not enabled. This exception trips only on START and FAILED. | IMS Status (Alerts) |
| NLOQ | Displays if there is an unavailable video-type, logical terminals with an output queue length > nn. | LTERMS |
| NOFB | Displays if a region is in buffer wait due to a lack of Fast Path buffers. | Fast Path (Alerts) |
| NOOT | Displays if all output threads are in use and there are buffers queuing up for OTHRs. | Fast Path (Alerts) |
| NPDL | Displays if there is no parallel DL/I. | IMS Status (Alerts) |
| NPOQ | Displays if there is an unavailable non-video-type, logical terminals with an output queue length > nn. | LTERMS |
| NQRE | Displays if a RECON data set is enqueued by another job. | Resources (Alerts) |
| NSDC | Displays if IMS does not perform START DC. | IMS Status (Alerts) |
| NTIQ | Displays non-competing transactions with an input queue length > nn. A non-competing transaction is a transaction that is unable to run for some reason other than the competition for IMS resources. Examples are a transaction where you stopped the transaction code or a transaction that requires the use of a stopped database. | Transactions |
| NVAP | Displays if there is no VTAM authorized path. Running an IMS VTAM network without the VTAM authorized path option can have significant performance penalties. | IMS Status |
| NVOQ | Displays if there is an unavailable virtual video-type terminal with an output queue length > nn. | LTERMS |
| OBAU | Displays if a region is currently using the Fast Path overflow buffer allocation. | Fast Path (Alerts) |
| ODIE | Displays if fewer than three OLDS are still active. | Logging (Alerts) |
| OHLO | Displays if the ISAM/OSAM hit ratio is < nn%. | Buffer Pools |
| OLER | Displays if OLDS nn encountered a write I/O error. | Logging (Alerts) |
| OLNA | Displays if OLDS auto archiving is not active. | Logging (Alerts) |
| OLST | Displays if OLDS nn is stopped. | Logging (Alerts) |
| ONLC | Displays if an online change is in progress. | IMS Status (Alerts) |
| ONLO | Displays if an online change occurred. | IMS Status (Alerts) |
| ORER | Displays if the number of OLDS with I/O errors is > nn. | Logging (OLDS) |
| ORIP | Displays if the number of OLDS inactive is > nn. | Logging (OLDS) |
| ORST | Displays if the number of OLDS that are stopped is > nn. | Logging (OLDS) |
| OSBL | If there are any ISAM/OSAM database buffer pools locked due to a write error, OSBL displays the number that are locked. | Pools (Alerts) |
| OSDN | Displays if: There is only one OLDS available. The rest of the OLDS are stopped or have write errors. IMS is terminating because the last available OLDS is damaged. | Logging (Alerts) |
| OXHI | Displays if the OSAM database data set EXCP rate is > the user-specified limit and applies to all OSAM databases. | Databases (Alerts) |
| OXLO | Displays if the OSAM database data set EXCP rate is < the user-specified limit and applies to all OSAM databases. | Databases (Alerts) |
| PAQC | Displays if the asynchronous output queue length for a TPIPE is > nn. | IMS OTMA |
| PBTR | Displays if PSB trace facility is on. | Traces (Alerts) |
| PIBC | Displays if the BMP common area page-in rate is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PIBP | Displays if the BMP private area page-in rate is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PICC | Displays if the common area page-in rate for the control region is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PICP | Displays if the private area page-in rate for the control region is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PIDC | Displays if the common area page-in rate for DBRC is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PIDP | Displays if the private area page-in rate for DBRC is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PILC | Displays if the common area page-in rate for IRLM is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PILP | Displays if the private area page-in rate for IRLM is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PIMC | Displays if the message processing region common area page-in rate is > nn per second during the last OMEGAMON cycle. The default OMEGAMON cycle is five seconds. | Virtual Storage (Page-In Rate) |
| PIQC | Displays if the input queue count for a TPIPE is > nn (IMS V10 or higher). | IMS OTMA |
| PIQH | Displays if the number of PI enqueue locks held by the indicated thread is > nn. | Locks |
| PIQR | Displays if the input queue rate for a TPIPE is > nn (IMS V10 or higher). | IMS OTMA |
| PIRP | Displays if the message processing region private area page-in rate is > nn per second during the last OMEGAMON cycle. The default OMEGAMON cycle is five seconds. | Virtual Storage (Page-In Rates) |
| PISC | Displays if the common area page-in rate for the DLS region is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PISP | Displays if the private area page-in rate for the DLS region is > nn per second during the last OMEGAMON cycle. | Virtual Storage (Page-In Rates) |
| PITR | Displays if the program isolation trace facility is on. | Traces (Alerts) |
| POQC | Displays if the output queue length for a TPIPE is > nn. | IMS OTMA |
| POQR | Displays if the output queue rate for a TPIPE is > nn. | IMS OTMA |
| PROQ | Displays if the printer is unable to receive output. | Resources (Alerts) |
| PSTP | Displays if the status of a TPIPE is stopped or input stopped. | IMS OTMA |
| PSVC | Displays if IMS physical logger task waiting in SVC code. | Resources (Alerts) |
| PWTA | Displays if the status of a TPIPE is WAITA or WAIT, which are two different types of waits for the transaction pipe on a synchronous message. These states indicate that IMSis waiting for an ACK or waiting for a NAK for a commit-then-send, commit-mode 0 (CM0), output response. | IMS OTMA |
| QBKH | Displays if the queue blocks data set I/O rate is > nn per second. | I/O Rates (Data Sets) |
| RDSH | Displays if the restart data set I/O rate is > nn per second. | I/O Rates (Data Sets) |
| RGNW | Displays if region waiting time is > nn minutes. | Regions |
| RGSH | Displays if checkpoints taken for an IMS BMP are > nn. | Regions |
| RGSI | Displays if the region sync point interval is > nn minutes. The RGSI alerts the customer if current time minus time of the latest system checkpoint is greater than nn minutes and the region has insert and/or update activity. | Regions |
| ROHI | Displays if the message region occupancy is > nn%. OMEGAMON calculates the occupancy factor by sampling each message region once every OMEGAMON cycle, to see whether OMEGAMON scheduled a transaction. As this is a statistical method, the data is not significant until there is a relatively large number of samples. OMEGAMON bypasses this exception until it takes at least 120 samples. If the interval setting for the OMEGAMON is five seconds, there is a 10 minute delay for OMEGAMON to calculate occupancy. OMEGAMON does not automatically treat WFI region occupancy as 100%, and considers only a WFI region occupied if the region is not in the waiting for input state. For the occupany factor calculation, OMEGAMON maintains only samples fewer than 60 minutes old. Therefore, the region occupancy is an average over the preceding hour. As message regions stop and restart, OMEGAMON begins the calculation again. A sample exception message is ROHI MPP 'MESSAGE': Region Occupancy = 93.84% (High). | Message Processing (High) |
| ROLO | Displays if the message region occupancy is < nn%. OMEGAMON calculates the occupancy factor by sampling each message region once every OMEGAMON cycle, to see whether OMEGAMON scheduled a transaction. Because it is a statistical method, the data is not significant until there is a relativley large number of samples. OMEGAMON bypasses this exception until it takes at least 120 samples. If the interval setting for the OMEGAMON is five seconds, there is a 10 minute delay for OMEGAMON to calculate occupancy. OMEGAMON does not automatically treat WFI region occupancy as 100%, and considers only a WFI region occupied if the region is not in the waiting for input state. For the occupancy factor calculation, OMEGAMON only maintains samples fewer than 60 minutes old. Therefore, the region occupancy is an average over the preceding hour. As message regions stop and restart, OMEGAMON begins the calculation again. A sample exception message is ROHI MPP 'MESSAGE': Region Occupancy = 6.72% (Low). | Message Processing (Low) |
| RSRV | Displays if there is no VTAM
connection to the RSR Tracking System. The VTAM connection
between the ACTIVE IMS and the TRACKING IMS is not available. The VTAM
connection is only available from the ACTIVE IMS. Note: Because
the TRACKING IMS can function for multiple ACTIVE IMS systems, we cannot identify an IMS that is not connected but should be.
|
IMS Status (Alerts) |
| SAPW | Displays if IMS puts an ITASK into the IWAIT state because no dynamic SAPs (save area prefix sets) are available. The SAPW exception message might display with the SDSP (selective dispatching) message. Running out of dynamic SAPs is one reason why IMS activates selective dispatching. | IMS Status (Alerts) |
| SCTR | Displays if the scheduler trace is active. | Traces (Alerts) |
| SDLO | Displays if the number of free control intervals in the sequential dependent part of the DEDB area is < nn%. The default value is 10. | Fast Path (Low) |
| SDSP | Displays if selective dispatching is active. IMS invokes selective dispatching, when there is a shortage of storage for some of the IMS internal resources. IMS must restrict the scheduling of new work until IMS relieves the shortage. | IMS Status (Alerts) |
| SMGH | Displays if the short message data set I/O rate is > nn per second. | I/O Rates (Data Sets) |
| TCOI | Displays if the Time Controlled Operations (TCO) is inactive. | IMS Status (Alerts) |
| TCOT | Displays if the time controlled operations (TCO) trace is active. | Traces (Alerts) |
| THHI | Displays if the number of active threads is > nn. | Threads (High) |
| THHP | Displays if the number of active threads is > nn% of all available threads. | Threads (High) |
| THLO | Displays if the number of active threads is < nn. | Threads (Low) |
| THLP | Displays if the number of active threads is < nn% of all available threads. | Threads (Low) |
| TMFH | Displays if the test MFS data set I/O rate is > nn per second. | I/I Rates (Data Sets) |
| TMSI | Displays if the Transport Manager Subsystem (TMS) is not
active. Note: This also causes a break in the VTAM connection.
Without TMS, you cannot re-establish the VTAM connection from
the ACTIVE IMS to the TRACKING IMS.
|
IMS Status (Alerts) |
| Tnnn | Displays a dynamic exception that you create by using the THIN command. This exception Displays if it detects that a CCTL exceeded its percentage of threads in use threshold. For more information, see the THIN command in the IBM Tivoli OMEGAMON for IMS Realtime Commands Reference. | n/a |
| TNRS | Displays if a tape device is not responding to an I/O request. | Resources (Alerts) |
| TPSB | Displays a dynamic exception that you create by using the TTIM
command. This exception Displays if it detects that a PSB exceeded a time threshold. Note: You
can see this exception only in the command/menu interface. For more information, see the
TTIM command in the IBM
Tivoli
OMEGAMON for IMS Realtime Commands Reference.
|
n/a |
| TRDY | Displays if a tape device drops ready. | Resources (Alerts) |
| TXIQ | Displays if there are competing transactions with an input queue
length > nn. The TXIQ analysis examines all competing transactions to identify those
transactions with an input message queue length <= the threshold n, which the user sets. Note: A
transaction might queue if a message region of the appropriate class is not currently available to
run the transaction. A non-competing transaction is a transaction that is unable to run for some
reason other than the competition for IMS resources. Examples
are a transaction where you stopped the transaction code or a transaction that requires the use of a
stopped database.
|
Transactions |
| VCAS | Displays if database VSAM control area splits are > per minute. | VSAM |
| VCIS | Displays if database VSAM control interval splits are > nn per minute. | VSAM |
| VHLO | Displays if the VSAM hit ratio is < nn%. | Buffer Pools |
| VMEX | Displays if the number of extents for the VSAM data set is increasing. | VSAM (Alerts) |
| VMLO | Displays if IMSCTL maximum private free block size is < nn K. | Virtual Storage (Low) |
| VROQ | Displays if logical terminal is unable to receive output. | IMS Status (Alerts) |
| VSLO | Displays if IMSCTL total private free block size is < nn K. | Virtual Storage (Low) |
| VTLO | Displays if IMSCTL free block size is < nn K. | Virtual Storage (Low) |
| VWRC | Displays if the VSAM writecheck is ON for a database. | VSAM (Alerts) |
| VXHI | Displays if the VSAM database data set EXCP rate is > the
user-specified limit. Note: This exception applies to all VSAM databases.
|
Databases (Alerts) |
| VXLO | Displays if the VSAM database data set EXCP rate is < the
user-specified limit. Note: This exception applies to all VSAM databases.
|
Databases (Alerts) |
| WBHI | Displays if BMP working set size is > nn K. | Working Sets (High) |
| WBLO | Displays if BMP working set size is < nn K. | Working Sets (Low) |
| WCHI | Displays if the control region working set size is > nn K. | Working Sets (High) |
| WCLO | Displays if the control region working set size is < nn K. | Working Sets (Low) |
| WDNA | Displays if the write-ahead data sets (WADS) are inactive. | Logging (Alerts) |
| WDNB | Displays if the number of spare WADS remaining is < nn. | Logging (WADS Low) |
| WLHI | Displays if the IRLM working set size is > nn K. | Working Sets (High) |
| WLLO | Displays if the IRLM working set size is < nn K. | Working Sets (Low) |
| WMHI | Displays if the message processing region working set size is > nn K. The working set size is the number of real pages the region currently has in memory. Under MVS/ESA, the working set size includes expanded storage. | Working Sets (High) |
| WMLO | Displays if the message processing region working set size is < nn K. The working set size is the number of real pages the region currently has in memory. Under MVS/ESA, the working set size includes expanded storage. | Working Sets (Low) |
| WRHI | Displays if DBRC working set size is > nn K. | Working Sets (High) |
| WRLO | Displays if DBRC working set size is < nn K. | Working Sets (Low) |
| WSHI | Displays if DLS working set size is > nn K. | Working Sets (High) |
| WSLO | Displays if DLS working set size is < nn K. | Working Sets (Low) |
| XCNF | Displays if a Program Isolation (PI) or IMS/VS Resource Lock Manager (IRLM) resource conflict exists. | Locks (Alerts) |
| XRAT | Displays if XRF automatic takeover is not active. | XRF (Alerts) |
| XRAV | Displays if XRF availability manager is not active. | XRF (Alerts) |
| XRIP | Displays if I/O prevention is in progress on the active IMS system. | XRF (Alerts) |
| XRIT | Displays if I/O toleration is in progress on the standby IMS system. | XRF (Alerts) |
| XRNS | Displays if XRF surveillance is not active. | XRF (Alerts) |
| XRPH | Displays if the number of PSTs held on the standby system is > nn. | XRF |
| XRSR | Displays if no secondary RDS is allocated. | XRF (Alerts) |
| XRTO | Displays if an XRF takeover is in progress. | XRF (Alerts) |