IFCID 263 - Page Set and Partition Castout Detail

This topic shows detailed information about Record Trace - IFCID 263 - Page Set and Partition Castout Detail.

This record shows page set and partition castout statistics. It is written by the page set or partition castout owner after the castout engine completed servicing the castout request.

This record is only written in a data sharing environment.

Record trace - IFCID 263 - Page Set and Partition Castout Detail

The field labels shown in the following sample layout of Record Trace - IFCID 263 - Page Set and Partition Castout Detail are described in the following section.


BUFFERPOOL ID          :          0   CASTOUT REASON     : GROUP BUFFER POOL CHECKPOINT
DATABASE ID            :          1   PAGE SET OBJECT ID :         68   START TIME         : 12/11/08 11:24:20.123456
PARTITION NUMBER       :          0   PRIVATE BUFFER     :         32   ELAPSED TIME       : 00:00:00.123456
CASTOUT DATA REQUESTS  :          2   UNLOCK FOR CASTOUT :          1   READ CASTOUT CLASS :          8
DELETE NAME REQUESTS   :          0   WRITE I/O REQUESTS :          1   SEC-GBP DEL NAME LIST  :      3
TIME DEL-NAME GBP      :  123456789   DEL-NAME GBP       :      12345
TIME DEL-NAME SEC-GBP  :  123456789   DEL-NAME SEC-GBP   :      12345
QW0263FL               :      X'C1'   QW0263S1           :         XX   QW0263S2              :         XX

BUFFERPOOL ID

The internal identifier of the buffer pool. The values 0 through 49 are the identifiers for BP0 through BP49. The values 80 through 89 are the identifiers for BP32K through BP32K9.

Field Name: QW0263BP

CASTOUT REASON

The reason why the castout was invoked.

CLASS THRESHOLD
GROUP BUFFER POOLT THRESHOLD
GROUP BUFFER POOL CHECKPOINT
GROUP BUFFER REBUILD
SYNCHRONOUS CASTOUT
CONVERTED TO NON-GBP-DEPENDENT OR ASYNCH. CASTOUT

Field Name: QW0263RS

DATABASE ID

The ID of the database.

Field Name: QW0263DB

PAGE SET OBJECT ID

The ID of the page set object.

Field Name: QW0263PS

START TIME

The date and time at which castout processing started.

Field Name: QW0263TS

PARTITION NUMBER

The partition number. It is 0 if this is a non-partitioned page set.

Field Name: QW0263PT

PRIVATE BUFFER

The number of private buffer allocated to this engine (in 4K increments).

Field Name: QW0263PB

ELAPSED TIME

The duration of the castout process. The RECORD TIME field shows when this process ended. Calculated by QW0263TS - QWHSSTCK.

Field Name: RT0263ET

CASTOUT DATA REQUESTS

The number of coupling facility requests to cast out data.

Field Name: QW0263CD

UNLOCK FOR CASTOUT

The number of coupling facility requests to unlock for a castout.

Field Name: QW0263UN

READ CASTOUT CLASS

The number of coupling facility requests to read a castout class.

Field Name: QW0263RC

DELETE NAME REQUESTS

The number of coupling facility requests to delete a name.

Field Name: QW0263DN

WRITE I/O REQUESTS

The number of write I/O requests.

Field Name: QW0263IO

GBP DEL NAME LIST

The number of IXLCACHE delete_name_list requests to the secondary group buffer pool when the GBP MODE is DUPLEX.

Field Name: QW02632D

TIME DEL-NAME GBP

Duration of DELETE_NAME to primary GBP.

Field Name: QW0263TD

DEL-NAME GBP

The number of times a DELETE_NAME request was reissued to the primary GBP.

Field Name: QW0263RD

TIME DEL-NAME SEC-GBP

Duration of DELETE_NAME to the secondary GBP.

Field Name: QW02632T

DEL-NAME SEC-GBP

The number of times a DELETE_NAME request was reissued to the secondary GBP for duplexing.

Field Name: QW02632R