Display buffer pool -- Fields and controls

Not detailed radio button
Sample display buffer pool output
Since active radio button
Since last display radio button

Since last display

The report includes all summary report information and the buffer pool statistics that accumulated during the interval since the last display command of this type. If there was not a previous Since last display report, all the statistics are displayed.

Since active

The report includes all summary report information and the buffer pool statistics that accumulated since the buffer pool was first activated.

Not detailed

The report is a summary only. This is the default. A summary report contains identification information (buffer pool name, ID, use count), hiperpool values, and thresholds.

Sample display buffer pool output

The following is a summary report produced for you as the following command:

-DISPLAY BUFFERPOOL(BP0) 

DSNB401I   BUFFERPOOL NAME BP0, BUFFERPOOL ID 0, USE COUNT 10

DSNB402I   VIRTUAL BUFFERPOOL SIZE = 1000 BUFFERS

             ALLOCATED       =     1000   TO BE DELETED   =        0

             IN-USE/UPDATED  =      200

DSNB403I   HIPERPOOL SIZE = 100000 BUFFERS, CASTOUT = YES

             ALLOCATED       =   100000   TO BE DELETED   =        0

             BACKED BY ES    =        0

DSNB404I   THRESHOLDS -

             VP SEQUENTIAL         = 80   HP SEQUENTIAL         = 80

             DEFERRED WRITE        = 50   VERTICAL DEFERRED WRT = 10

             PARALLEL SEQUENTIAL   = 50   ASSISTING PARALLEL SEQT= 80

DSNB405I   HIPERSPACE NAMES - @001SSOP

             IOP SEQUENTIAL        =  0

The following is a detailed report produced for you as the following command:

-DISPLAY BUFFERPOOL(BP0) DETAIL 

   DSNB401I - BUFFERPOOL NAME BP0, BUFFERPOOL ID 0, USE COUNT 10

   DSNB402I - VIRTUAL BUFFERPOOL SIZE = 1000 BUFFERS

                ALLOCATED       =     1000   TO BE DELETED   =        0

                IN-USE/UPDATED  =      200

   DSNB403I - HIPERPOOL SIZE = 600000 BUFFERS, CASTOUT = YES

                ALLOCATED       =   600000   TO BE DELETED   =        0

                BACKED BY ES    =   483651

   DSNB404I - THRESHOLDS -

                VP SEQUENTIAL         = 80   HP SEQUENTIAL         = 80

                DEFERRED WRITE        = 50   VERTICAL DEFERRED WRT = 10

                PARALLEL SEQUENTIAL   = 50

   DSNB405I - HIPERSPACE NAMES - @001SSOP @002SSOP

   DSNB409I - INCREMENTAL STATISTICS SINCE 10:32:48 OCT 23, 1993

   DSNB411I - RANDOM GETPAGE    =      230 SYNC READ I/O (R) =      180

              SEQ.   GETPAGE    =      610 SYNC READ I/O (S) =       20

              DMTH HIT          =        0

   DSNB412I - SEQUENTIAL PREFETCH -

                REQUESTS        =        0   PREFETCH  I/O   =        0

                PAGES READ      =        0

   DSNB413I - LIST PREFETCH -

                REQUESTS        =        0   PREFETCH  I/O   =        0

                PAGES READ      =        0

   DSNB414I - DYNAMIC PREFETCH -

                REQUESTS        =        0   PREFETCH  I/O   =        0

                PAGES READ      =        0

   DSNB415I - PREFETCH DISABLED -

                NO BUFFER       =        0   NO READ ENGINE  =           0

   DSNB420I - SYS PAGE UPDATES  =        0 SYS PAGES WRITTEN =           0

              ASYNC WRITE I/O   =        0 SYNC WRITE I/O    =           0

   DSNB421I - DWT HIT           =        0 VERTICAL DWT HIT  =           0

              NO WRITE ENGINE   =        0

   DSNB430I - HIPERPOOL ACTIVITY (NOT USING ASYNCHRONOUS

              DATA MOVER FACILITY) -

                SYNC HP READS   =      100   SYNC HP WRITES  =           0

                ASYNC HP READS  =        0   ASYNC HP WRITES =           0

                READ FAILURES   =        0   WRITE FAILURES  =           0

   DSNB431I - HIPERPOOL ACTIVITY (USING ASYNCHRONOUS

              DATA MOVER FACILITY) -

                HP READS        =      244   HP WRITES       =           3

                READ FAILURES   =        0   WRITE FAILURES  =           0

   DSNB440I - PARALLEL ACTIVITY -

                PARALL REQUEST  =        0   DEGRADED PARALL =       0

   DSN9022I - DSNB1CMD '-DISPLAY BUFFERPOOL' NORMAL COMPLETION