Previous Topic: 6.1 Data Collector Considerations

Next Topic: 6.3 Contention For "Logical" (ENQ) Resources

6.2 Record Descriptions



The CA MICS Hardware and SCP Analyzer uses SMF record types
70 through 79, which are written by the RMF (Resource
Management Facility).  Following are brief descriptions of
these records:

TYPE 70 - RMF Processor Activity

   The type 70 records processed by CA MICS are CPU, PR/SM,
   and ICF Activity (subtype 1), and Cryptographic Hardware
   Activity (subtype 2).

   o  Type 70 subtype 1 record contains CPU measurement data.
      It reports CPU wait time and the serial and version
      numbers, as well as the number of I/O interrupts and
      the number of interrupts for each processor.  It
      indicates the number of jobs and the percentage of jobs
      in the following states:

      -  IN - Tasks in real memory on the SRM IN queue.

      -  IN-READY - Tasks in real memory and ready to
         execute.

      -  OUT-WAIT - Tasks not in real memory that are waiting
         before they will be ready to execute.

      -  LOGICAL-OUT-READY  -  Tasks logically swapped out
         but not yet physically swapped out that are now
         ready to execute.

      -  LOGICAL-OUT-WAIT  -  Tasks logically swapped out but
         not yet physically swapped out that are waiting.

      It recognizes five different types of jobs: batch,
      TSO, started task, ASCH, and USS.  For each type, the
      minimum, average, and maximum number of users in the
      recording interval are captured.

      It also contains the PR/SM and ICF information used to
      track logical partitions configuration and utilization.

   o  Type 70 subtype 2 record contains measurement data for
      cryptographic coprocessors and accelerators, as well as
      selected Integrated Cryptographic Service Facility
      (ICSF) activities.


TYPE 71 - RMF Paging Activity

   The type 71 record contains paging and swapping
   measurement data.  Swapping is the primary way the system
   resource manager deals with resource shortages or
   overutilization.

   Information regarding CSA, LPA, SQA, LSQA, and private
   areas is reported.  This information includes the minimum,
   average, and maximum frames used in these areas for both
   fixed and pageable frames.

   The type 71 record also contains paging information.  For
   CSA, LPA, Private VIO, and Private non-VIO areas, RMF
   records the number of pages read in, the number of pages
   written out, and shared page group activity.  From this
   information and the duration of the recording interval, a
   number of different paging rates are calculated.


TYPE 72 - RMF Workload Activity and Storage Data

   The type 72 subtype 3 record contains data pertaining to
   systems that are using the Workload Manager.  These
   records are written for each service or report class
   defined in the active service policy, and include the
   goals and actual measured values for each class.

   CPU data contained in the type 72 records is in CPU
   service units, not CPU seconds.  This data can be
   converted to CPU seconds by multiplying by the coefficient
   appropriate for model and type of CPU.  I/O and memory
   utilization information is also captured in this record.
   The number of ended transactions and the total elapsed
   time of these transactions are also recorded.


TYPE 73 - RMF Channel Path Activity

   The type 73 record contains physical and logical channel
   activity measurement data.  The data contains information
   for each channel path indicating the type of channel and
   channel-busy time.


TYPE 74 - RMF Activity of Several Resources

   The type 74 records processed by CA MICS are Device
   Activity (subtype 1), Cross-system Coupling Facility
   Activity (subtype 2), USS Kernel Activity (Unix System
   Services) (subtype 3), CF/XES Activity (Coupling
   Facility/Cross-System Extended Services) (subtype 4),
   Cache Subsystem Activity (subtype 5), FICON Director
   Statistics (subtype 7), and Enterprise Disk System
   Statistics (subtype 8).

   o  Type 74 subtype 1 records contain information for each
      device about the number of Start Subchannels (SSCHs) or
      Start I/Os (SIOs) for the device, the number of I/O
      requests deferred, the device active time, connect
      time, disconnect time, pending time, and the number of
      allocations in effect on the device.

   o  Type 74 subtype 2 record contains information for its
      system on the amount of traffic to, from, and within
      the system; the number of signals sent to and from each
      remote system, group, and member; and the signaling
      path connecting the local system to all remote systems.

   o  Type 74 subtype 3 record contains system-wide
      information about Unix System Services (USS)
      utilization, including user and process load,
      inter-process communication, memory map, and shared
      library measurements.

      Note:  Unix System Services was previously known as
             OpenEdition MVS.

   o  Type 74 subtype 4 record contains information on the
      Coupling Facility such as name, amount of storage
      installed and used, and number and utilization of
      processors.  It contains the names of the other systems
      in the sysplex connected to the CF, names and storage
      resources of all structures allocated in the CF, and
      detailed information identifying the cross-system
      request activity to and from the system.  It also
      describes the hardware paths between the system and the
      other structures in the sysplex.

   o  Type 74 subtype 5 record contains information on the
      Cache Subsystem such as control information, return
      codes from the interfaces, cache statistics at the
      device, RAID rank, and control unit level.

   o  Type 74 subtype 7 record contains configuration and
      statistics for FICON directors (switches) and ports.

   o  Type 74 subtype 8 record contains capacity and
      performance statistics for Enterprise Disk Systems'
      adapters, extent pools, and ranks.


TYPE 75 - RMF Page/Swap Data Set Activity

   The type 75 record contains Page/Swap Data Set Activity
   measurement data.  The data contains information for each
   page or swap data set.  Information captured includes the
   number of pages transferred, the number of I/O requests,
   and the number of slots available and used for each data
   set.


TYPE 76 - RMF Trace Activity

   The type 76 record contains trace measurement data.  The
   data contains information for each field traced.
   Information captured includes the field name and its last
   value.


TYPE 77 - RMF Enqueue Activity

   The type 77 record contains enqueue measurement data.  The
   data contains information for each device that was
   enqueued during the RMF recording interval.  Information
   captured includes the current owner, the waiting users,
   and the queue length for each enqueue event.


TYPE 78 - RMF Virtual Storage and I/O Queuing Activity

   The type 78 records are the Virtual Storage Activity
   record (subtype 2) and the I/O Queuing Activity record
   (subtype 3).

   o  Type 78 subtype 2 record contains information
      concerning the amount of virtual storage reserved for
      the CSA, MLPA, FLPA, PLPA, SQA, and nucleus, both below
      and above the 16 MB line.  The amount of storage
      allocated for SQA is recorded by subpool and, for CSA,
      by subpool and storage key.  SQA expansion into CSA is
      also recorded.  Private virtual storage usage
      information is recorded for jobs specified with the RMF
      Monitor I VSTOR option.

   o  Type 78 subtype 3 record contains information on the
      I/O configuration, I/O activity rates, and queue
      lengths recorded for logical control units (LCUs).
      This record also contains measurements pertaining to
      the IOPs (I/O processors).


TYPE 79 - RMF Monitor II Activity

   The type 79 record contains RMF Monitor II measurement
   data.  RMF Monitor II is often run to diagnose a specific
   problem or to gather more detailed data.  Type 79 records
   are only generated when RMF Monitor II is run as a
   background session.  The type 79 subtype records processed
   by CA MICS are Address Space Resource (subtype 2), Real
   Storage/Processor/SRM (subtype 3), and Reserve (subtype
   6).

   o  Type 79 subtype 2 record contains measurements on CPU
      time, EXCP count, paging statistics, fixed frames used,
      and hiperspace pages used for given address spaces.
      Its data reflects systems using the Workload Manager.

   o  Type 79 subtype 3 record contains measurements on real
      storage and expanded storage usage for some storage
      categories, UIC count, processor utilization, and some
      of the SRM queues on a system-wide basis.

   o  Type 79 subtype 6 record contains information on the
      RESERVE macros that were issued.  This can be very
      useful in a shared DASD environment.  Included in the
      information recorded is the volume serial number, the
      job that issued the reserve, major and minor resource
      names, and the status of the reserve.


Figure 6-1 shows the relationship between the various SMF
record types generated by RMF and the CA MICS Hardware and
SCP Analyzer files.

+---------------------+-------------------+ | RMF Record Type | CA MICS File | +---------------------+-------------------+ | 70 | HARCPU | | Subtype 1 | HARIPU | | | HARLPC | | | HARVPA | +---------------------+-------------------+ | 70 | HARCRA | | Subtype 2 | HARCRF | | | HARCRP | +---------------------+-------------------+ | 71 | SCPPAG | | | SCPSWP | +---------------------+-------------------+ | 72 | WLMSDE | | Subtype 3 | WLMRGP | | | WLMSVC | | | WLMSDS | | | WLM_EW | | | WLMSEA | | | WLM_EA | | | WLMSEC | | | WLM_EC | | | WLMSEM | | | WLM_EM | | | WLMSED | | | WLM_ED | +---------------------+-------------------+ | 73 | HARPCA | +---------------------+-------------------+ | 74 | HARDVA | | Subtype 1 | HARDTA | | | HARSGA | | | SCPLCU * | +---------------------+-------------------+ | 74 | SCPXCY | | Subtype 2 | SCPXCA | | | SCPXCM | +---------------------+-------------------+ | 74 Subtype 3 | SCPKRN | +---------------------+-------------------+


Figure 6-1. Record Type and File Table (Part 1 of 2)

+---------------------+-------------------+ | RMF Record Type | CA MICS File | +---------------------+-------------------+ | 74 | HARCFP | | Subtype 4 | HARCFC | | | HARCFS | | | HARCFR | | | HARCFH | | | HARCFD | +---------------------+-------------------+ | 74 | HARCCU | | Subtype 5 | HARCVA | | | HARRRA | +---------------------+-------------------+ | 74 | HARFDC | | Subtype 7 | HARFDP | +---------------------+-------------------+ | 74 | HARELS | | Subtype 8 | HARXPS | | | HARERS | +---------------------+-------------------+ | 75 | SCPPSD | +---------------------+-------------------+ | 76 | SCPTRC | +---------------------+-------------------+ | 77 | SCPENQ | +---------------------+-------------------+ | 78 | SCPVSM | | Subtype 2 | SCPVSU | +---------------------+-------------------+ | 78 | SCPIOC | | Subtype 3 | SCPIOP | | | SCPLCA | | | SCPLCU * | +---------------------+-------------------+ | 79 Subtype 2 | SCPARD | +---------------------+-------------------+ | 79 Subtype 3 | SCPSRC | +---------------------+-------------------+ | 79 Subtype 6 | HARRSV | +---------------------+-------------------+


* The SCPLCU file is created by merging information from the
  HARDVA, SCPIOC and SCPLCA files.

Figure 6-1. Record Type and File Table (Part 2 of 2)