IFCID 007 - Read I/O Stop
This topic shows detailed information about "Record Trace - IFCID 007 - Read I/O Stop".
Record trace - IFCID 007 - Read I/O Stop
The field labels shown in the following sample layout of "Record Trace - IFCID 007 - Read I/O Stop" are described in the following section.
DBID 1 RETCODE 0 ACE 1
OBID 9 READ 7
PAGE NUMBERING: N/A PARTITION NUMBER: 0
PAGE PREFETCHED VIA IO OPERATION:
X'00000026' X'00000027' X'00000028' X'00000029'
X'0000002A' X'0000002B' X'0000002C'
- DBID
The database ID. This is deduced from the DB2 fields QW0007DB, QW0105DN or QW0107DN.
When present, the database name is shown, otherwise the decimal identifier from QW0007DB is shown, or N/A when this value is 0.
Field Name: RT0007DB
- RETCODE
The return code from the media manager.
Field Name: QW0007MM
- ACE
The relative number of the agent control element address in the ACE cross-reference table. This table is printed at the end of each location for every trace specified.
Field Name: QW0007AC
- OBID
The object ID. This is deduced from the DB2 fields QW0007OB, QW0105TN or QW0107TN.
When present, the name of the object is shown, otherwise the decimal identifier from QW0007OB is shown, or N/A when this value is 0.
Field Name: RT0007OB
- READ
The number of pages read.
Field Name: QW0007NP
- PAGE NUMBERING
- Indicates how page numbers are shown for partitioned tables:
- REL
- Indicates that relative page numbers are shown in the partition.
- ABS
- Indicates that absolute page numbers are shown in the partition.
- N/A
- Not applicable.
Field Name: QW0007P1
- PARTITION NUMBER
The partition number. This value is 0 if the table space is not partitioned.
Field Name: QW0007PT
- PAGE PREFETCHED VIA IO OPERATION
The page number that was prefetched during an I/O operation.
Field Name: QW0007PF