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Displaying IMS ISAM/OSAM Buffer Pool Statistics (ROSP)

Displaying IMS ISAM/OSAM Buffer Pool Statistics (ROSP)

IMS ISAM/OSAM Buffer Pool panel

The IMS ISAM/OSAM Buffer Pool Statistics panel (Figure 71 ) provides size and usage information on the IMS ISAM/OSAM buffer pools, broken down by subpools.

FIGURE 71. ROSP IMS ISAM/OSAM Buffer Pool panel

.*************************************************************** +==================== IMS ISAM/OSAM Buffer Pool Statistics ===== | Period: 11:45 to 12:00 on 01/02/97 Elap =1 +--------------------------------------------------------------- | ISAM/OSAM Subpool # 1 Subpool ID: None 4 buffers of 1024 +-------------------------+------------+------------------------

********

==============+

5:00

M

IMSD

|

  • --------------

    +

bytes

each

|

  • -

    +------------+

| | | | | | |

Buffers Page-fixed? Locate calls Read requests New Block requests Purge requests Total I/O errors Hit ratio

| | | | | | |

No 23876 8763 1298 1098 0 5.1%

| | | | | | |

Prefix Page-fixed? Locates found in pool Single block writes Records altered Blks written by purge Buffers locked by err

| | | | | s| |

No 1235 1092 634 16 0

| | | | | | |

+-------------------------+------------+------------------------ +--------------------------------------------------------------- | ISAM/OSAM Subpool # 2 Subpool ID: None 4 buffers of 2048 +-------------------------+------------+------------------------

  • -

    +------------+

  • --------------

    +

bytes each

|

  • -

    +------------+

| | | | | | |

Buffers Page-fixed? Locate calls Read requests New Block requests Purge requests Total I/O errors Hit ratio

| | | | | | |

No 27654 1987 1298 1109 0 9.6%

| | | | | | |

Prefix Page-fixed? Locates found in pool Single block writes Records altered Blks written by purge Buffers locked by err

| | | | | s| |

No 2671 1732 287 16 0

| | | | | | |

+-------------------------+------------+------------------------ +--------------------------------------------------------------- | ISAM/OSAM Subpool # 3 Subpool ID: AYCD 4 buffers of 2048 +-------------------------+------------+------------------------

  • -

    +------------+

  • --------------

    +

bytes each

|

  • -

    +------------+

| | | | | | |

Buffers Page-fixed? Locate calls Read requests New Block requests Purge requests Total I/O errors Hit ratio

| | | | | | |

No 18766 2398 1878 1009 0 15.0%

| | | | | | |

Prefix Page-fixed? Locates found in pool Single block writes Records altered Blks written by purge Buffers locked by err

| | | | | s| |

No 2827 3092 234 16 0

| | | | | | |

+-------------- | Databases ass +----------+--- | AYCD01FX | DB +----------+--- +-------------- | +--------------

  • -----------

    +--------

igned to this subpoo

  • -------

    +---+------+-

$HFS01 | DB$MDL03 |

  • -------

    +---+------+-

--------------------

ISAM/OSAM Subpool

  • -----------

    +--------

  • ----

    +------------------------

l:

  • ----

    +----+----------+--------

SDBHINDX |

|

  • ----

    +----+----------+--------

-----------------------------

Summary -- All Subpools

  • ----

    +------------------------

  • -

    +------------+

|

  • --

    +-----------+

|

|

  • --

    +-----------+

  • --------------

    +

|

  • -

    +------------+

| | | | | |

Locate call Read reques New Block r Purge reque Total I/O e Hit ratio

s ts equests sts rrors

| | | | | |

1276

38

283

76

238

17

182

78

0

93.

8%

| | | | | |

Locates found in pool Single block writes Records altered Blks written by purge Buffers locked by err

| | |

| s| |

119827 27687 1872

16 0

| | |

| | |

+-------------- +==============

  • -----------

    +--------

====================

  • ----

    +------------------------

=============================

  • -

    +------------+

==============+

Sample Resources Panels

183

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