IMS status information

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Use the ASYS command to display information about the status of the APPC/IMS system. Use ISYS to display general information about the status of the IMS™ system and use MSYS to display general information about the status of the z/OS® system

ASYS

Displays information about the state of the APPC/IMS system.

Type:: Immediate

Format:: ASYS

ASYS displays the following information.

APPC/IMS status summary
APPC/IMS LU6.2 descriptors

If you have IMS without Remote Site Recovery installed, the system displays ASYS information as shown in the following example:

Figure 1. ASYS information for IMS without remote site recovery

 ASYS    IMS Base Luname = IMSLU91C      IMS Base Network Id = USCACO01
  +       APPC Status = ENABLED          APPC Desired Status = ENABLED
  +       RACF Option = NONE             Generic Resources LU = --N/A--
  +       LU62 Active Sync Convs = 0     LU62 Active Async Convs = 0
  +
  +       DESCRIPTOR SIDE  NETID   LUNAME    MODE      TYPE   SYNCLVL
  +       >>> LU62  Descriptors not defined

The fields in the ASYS display are explained in the following list.

IMSLU: This identifies the base IMS LU name. The LU name displays N/A if IMS is not connected to APPC/z/OS. N/A applies for DISABLED, STARTING, or FAILED status.
IMSLU Netid: The network ID for the IMSLU. NETID displays N/A if IMS is not connected to APPC/z/OS. N/A applies for DISABLED, STARTING, or FAILED status.
APPC Status: The current IMS status of the APPC connection.
APPC Desired Status: The required IMS status of the APPC connection.
RACF® Option: The RACF security level. FULL (default) is the RACF check a clone ACEE to the dependent region. CHECK completes an RACF check, but not the cloning of ACEE. NONE indicates that no RACF calls are completed in IMS. PROFILE is the security option in the TP Profile.
Generic Resources Name: APPC generic LU name. N/A displays if VTAM® Generic Resources are not active.
Active Sync Convs: Number of active LU 6.2 synchronous conversations.
Active Async Convs: Number of active LU 6.2 asynchronous conversations. This display shows an LU 6.2 descriptor entry values for LU 6.2 descriptors if they are defined in IMS.
DESC: Descriptor name.
LUNAME: LUNAME for the descriptor. Not valid when SIDE is specified.
SIDE: APPC/z/OS side table for the descriptor. SIDE value overrides LUNAME and MODE entries.
SYNCLVL: Synchronous level (either CONFIRM or NONE).
TYPE: Conversation type (either BASIC or MAPPED).
MODE: VTAM mode table entry for descriptor, which is not valid when SIDE is specified.
TPNAME: TP name for descriptor.

ISYS

Displays general information about the state of the IMS system.

Type:

Immediate

Format:

cISYS

c

The variable c can be one of these values:

s: Displays a short form of the ISYS command
z: Displays data sharing group information for the IMS (if applicable)

If IMS is installed without Remote Site Recovery, the system displays ISYS information as shown in the following example:

Figure 2. ISYS information for IMS without Remote Site Recovery

  ISYS  IMS Version 12.1.0                Subsystem ID = 'IC1C'                  
+      MVS/ESA -- SP7.1.3                IRLM Release  2.3                      
+      IMS Restart date = 13.139 (Local) IMS Restart time = 14:38:35 (Local)    
+      IMS Restart date = 13.139 (UTC)   IMS Restart time = 18:38:35 (UTC)      
+      Checkpoints taken = 1             Current Checkpoint id = 20131391838350 
+      MPPs active = 1                   BMPs active = 0                        		
+      Applications scheduled = 0        Transactions queued = 0                
+      Msg Enqueue rate =.00/sec         Msg Dequeue rate =.00/sec              
+      System Dsn OSAM I/O's = 10        DLS OSAM I/O count  = 0                
+      >>> Remote Site Recovery not installed <<<                               
+      IMS Base LUname = IMSLUC1C        IMS Base Network Id = USCACO01         
+      APPC Status = ENABLED             APPC Desired Status = ENABLED          
+      RACF Option = NONE                Generic Resources LU = --N/A--         
+      LU62 Active Sync Convs = 0        LU62 Active Async Convs = 0

If you have IMS with Remote Site Recovery installed, the system displays ISYS information that is shown in the following example:

Figure 3. ISYS information for IMS with Remote Site Recovery

  ISYS  IMS Version 10.1.0                 Subsystem ID = ‘IA1A’
 +      MVS/ESA – SP7.1.2                  IRLM Release 2.2
 +      IMS Restart date = 11.066 (Local)  IMS Restart time = 09:24:58 (Local)
 +      IMS Restart date = 11.066 (UTC)    IMS Restart time = 14:24:58 (UTC)
 +      Checkpoints taken = 1              Current Checkpoint id = 20110661424585
 +      MPPs active = 1                    BMPs active = 0
 +      Applications scheduled = 62        Transactions queued = 0
 +      Msg Enqueue rate =.00/sec          Msg Dequeue rate =.00/sec
 +      System Dsn OSAM I/O’s = 300        DLS OSAM I/O count  = 0
 +      RSR Type = ACTIVE                  Global Service Group = IA1A
 +      Service Group = IA1A               Transport Mgr SSID = TA1A
 +      Readiness level = –N/A–
 +      Transport Manager = ACTIVE         VTAM Connection = ACTIVE
 +      IMS Base LUname = N/A              IMS Base Network id = N/A
 +      APPC Status = FAILED               APPC Desired Status = ENABLED
 +      RACF Option = NONE                 Generic Resources LU = --N/A--
 +      LU62 Active Sync Convs = 0         LU62 Active Async Convs = 0

If IMS with Remote Site Recovery is installed, the system displays sISYS information that is shown in the following example:

Figure 4. sISYS information for IMS with Remote Site Recovery

  sISYS MPPs active = 1                    BMPs active = 0
 +      Applications scheduled = 62        Transactions queued = 0
 +      Msg Enqueue rate =.00/sec          Msg Dequeue rate =.00/sec
 +      System Dsn OSAM I/O’s = 300        DLS OSAM I/O count  = 0
 +      RSR Type = ACTIVE                  Global Service Group = IA1A
 +      Service Group = IA1A               Transport Mgr SSID = TA1A
 +      Readiness level = –N/A–
 +      Transport Manager = ACTIVE         VTAM Connection = ACTIVE
 +      IMS Base LUname = N/A              IMS Base Network id = N/A
 +      APPC Status = FAILED               APPC Desired Status = ENABLED
 +      RACF Option = NONE                 Generic Resources LU = --N/A--
 +      LU62 Active Sync Convs = 0         LU62 Active Async Convs = 0

The zISYS command displays the same output as the ISYS command with or with Remote Site Recovery, but offers one more line of data for the data sharing group

All formats of the ISYS command (with a blank, z, or s in column 1) include the following fields:

Number of active MPPs
Number of active BMPs
Number of applications that are scheduled since the last warm start
Number of transactions in the input queue
Message enqueue and dequeue rates
OSAM I/Os issued by the control region (for example, OLDS I/O)
Number of database OSAM I/Os that complete in the DLS address
Space
Remote Site recovery information
APPC/IMS status summary
Data sharing group for the IMS system, if applicable (Enter z in column 1 of the ISYS command.)

MSYS

Displays general information about the state of the z/OS system.

Type:

Immediate

Format:

cMSYS

c

The variable c can be one of these values:

s

Displays a short form of the MSYS command

x

Displays the following more rate information:

Processor rate for the Control Region and Dependent regions
System (SIO) rate for the Control Region and Dependent Regions
Paging rate for the Control Region and Dependent Regions

MSYS accepts an argument of s or x in its label field. sMSYS gives a short form of the MSYS display.

As shown in the following figure, the MSYS command displays the amount of memory that is used by all system control address spaces and the number of active processors.

Figure 5. Typical z/OS system information display

 MSYS  System CPU usage = 65.12%          System SIO rate = 13.45/sec
 +      IMS CPU usage = 34.45%             IMS SIO rate = 7.35/sec
 +      Average IMS CPU = 33.49%           IMS SIO average = 5.55/sec
 +      Number of active CPUs = 1
 +                       --Virtual Storage---   ----------Working Set-----------
 +                       Below 16M  Above 16M        Real   Expanded  Total WKST
 +      Control Region :     1408K     11316K       1492K        N/A       1492K
 +      DBRC    Region :      564K      8832K         80K        N/A         80K
 +      DLS     Region :      708K      8952K        120K        N/A        120K
 +      IRLM    Region :      272K      9016K        296K        N/A        296K

The fields in the MSYS display are explained in the following list.

System CPU usage: Displays the total processor usage for the entire z/OS system. OMEGAMON® for IMS calculates system processor usage over the last SRM interval.
IMS CPU usage: Displays the amount that the IMS control region and its dependents expend, which includes both TCB and SRB times. OMEGAMON for IMS calculates IMS processor usage over the last OMEGAMON for IMS cycle, which is a shorter interval than the SRM interval.
The processor figures are percentages of the CEC, and therefore vary between 0 - 100, rather than between 0 and (100*(number of online processors)).
Average IMS CPU: Displays the average amount of processor that the IMS control region and its dependents expend since this OMEGAMON for IMS session is started.
Number of active CPUs: Displays the number of active processors.
System SIO rate: Displays the SIO rate across all of z/OS.
IMS SIO rate: Displays the SIO rate within all regions.
IMS SIO average: Displays the average SIO rate within all regions since this OMEGAMON for IMS session started.
Virtual Storage: Displays the number of virtual pages IMS has currently GETMAINed. (This number is suitable as an estimate for the size of the REGION= parameter on the z/OS EXEC JCL statement.)
Working Set: Displays real and expanded memory usage, and the current working set size.

Note: In this example, N/A indicates that expanded storage is not available on this processor.