Data

The Data page shows data set usage for all data sets that activity was observed against. It also shows data set details for all data sets allocated to the target such as DCB and ACB related information.

Contents:

Data View

The Data page displays data sets and database (DB2, CA IDMS, IMS, Adabas, and CA Datacom) activity. The data on the Data page is sorted in descending order by activity. You can select a data set or database to display detailed information.

Commands available in this view include:

  • Include Linklist/LPA
    Causes LINKLST and LPALIST data sets to be included in the display.

  • Exclude Linklist/LPA
    Causes LINKLST and LPALIST data sets to be excluded from the display.

  • Data Set Details
    Displays detailed information pertinent to a specific data set.

  • Volume Statistics
    Displays detailed volume information pertinent to a specific data set.

  • IMS Statement Details
    Displays the IMS Statements subpage for a row whose DD Name value is .IMS.

  • DB2 Statement Details
    Displays the DB2 Statements subpage for a row whose DD Name value is .DB2. This provides a subpage presentation of the same data that is displayed in the DB2 page.

  • Datacom Statement Details
    Displays the Datacom Statements subpage for a row whose DD Name value is .DCOM. This provides a subpage presentation of the same data that is displayed in the Datacom page.

  • IDMS Delays
    Displays the IDMS Delays subpage for a row whose DD Name value is .IDMS. This provides a subpage presentation of the same data that is displayed in the IDMS page.

  • Adabas Statement Details
    Displays the Adabas Statements subpage for a row whose DD Name value is .Adabas. This provides a subpage presentation of the same data that is displayed in the Adabas page.

  • Queue Manager Activity
    Displays the Queue Manager Activity subpage for a row whose DD name value is .MQ. This provides a subpage presentation of the same data that is displayed in the MQ page.

Data Columns

The Data page has the following columns:

  • DD Name
    The DDNAME used to allocate the data set.
    For a concatenation, multiple lines are displayed with identical DDNAMEs for each associated data set.

  • Dataset name
    The full name of the data set.
    For a concatenation, multiple lines are displayed with identical DDNAMEs for every data set associated with the DDNAME.

  • Delay %
    The percentage of the monitored period that activity was detected against the DD statement shown.
    If several data sets are allocated to a single DD statement, this number is repeated for every data set.

  • Block Size
    The block size of the data set. The block size is specified in the job control language using the BLKSIZE= parameter.

  • Record Length
    The logical record length of the records created by the application. The logical record length is specified in the job control language using the LRECL= parameter.

  • RECFM
    The format of the records written to the data set. The following list explains each value:

    • F Fixed records

    • FB Fixed blocked records

    • V Variable records

    • VB Variable blocked record

    • U Undefined records

  • EXPCs
    Displays the number of EXCPs issued during the monitor period for this data set. An EXCP is equivalent to reading or writing a single block to or from the data set. This value encompasses EXCPs from the first time the data set was detected by CA MAT to the termination of sampling.
    This does not include some I/O counts that are shown at the address space level. Refer to the SMF_Discussion for additional information.

  • Connect Time
    The number of milliseconds during the monitored period representing the end-to-end time for transferring data to or from the external media and memory.

    Note: This time may exceed the monitored period because of data overlap. This occurs when multiple blocks of data are moved to or from memory concurrently.

  • R/W
    If the DDNAME is for a data set, this field displays the intention of the program in opening the data set. If the DDNAME is for a database, this field displays the type of database.
    For data sets, this field contains one of the following values:

    • DIRECT

    • GET MOVE

    • GET LOCATE

    • PUT MOVE

    • PUT LOCATE

    • READ

    • WRITE

  • DSORG
    The organization of the data set. The following list contains an explanation of each value:

    • DA Direct access

    • PS Physical Sequential

    • IS Indexed Sequential

    • VSAM Virtual Sequential Access Method

    • PO Partitioned Organization

  • Access Method
    Identifies the access method used to read from or write to the data set. Possible values are:

    • BPAM - Basic partitioned access method

    • BTAM - Basic telecommunications access method

    • EXCP - Execute Channel Program

    • GRPH - Graphics access method

    • DA - Direct access method

    • ISAM - Indexed sequential access method

    • SAM - Sequential access method

    • SUBS - JES subsystem access

    • TAP - TCAM application access method

    • TCAM - Telecommunications access method

    • VSAM - Virtual sequential access method

    • VTAM - Virtual telecommunications access method

  • Buffer Number
    The number of buffers allocated for the data set.

  • Number Extents
    The number of physical extents allocated to the data set.
    Format:

  • For non-VSAM data sets: number from 1 to 16

    • For VSAM extents for a data set: number from 1 to 128

  • Alloc Unit
    The allocation unit for the data set. This field contains one of the following values:

    Value

    Description

    BLK

    Space is allocated in blocks

    CYL

    Space is allocated in cylinders

    TRK

    Space is allocated in tracks

    DSN

    The DDNAME indicates a database rather than a data set

    (blank)

    CA MAT did not detect the unit of allocation

  • PRI Size
    The initial allocation of cylinders, tracks, or blocks for a data set on direct access. Depending on the allocation unit, this field contains the following value:

    • For CYL, the number of cylinders allocated

    • For TRK, the number of tracks allocated

    • For BLK, the number of blocks allocated

  • SEC Size
    The number of secondary tracks, cylinders, or blocks allocated. Depending on the allocation unit, this field contains the following value:

    • For CYL, the number of secondary cylinders allocated

    • For TRK, the number of secondary tracks allocated

    • For BLK, the number of secondary blocks allocated

  • Seq Nr.
    The CA MAT sequence number of the record. This sequence number is incremented by CA MAT for each scheduling of the sampler into the target address space.

  • UCB Addr
    Displays the Unit Control Block number for this data set. The UCB is the logical device number, expressed in hexadecimal, on which this data set resides.

  • VOLSER(s)
    Displays the first six volume serial numbers on which this data set resides. In this view, the volume serial numbers are not separated by commas.