Input for I/O Activity reports

I/O Activity reports use IFCIDs from the DB2 Performance trace type, basically trace classes 4, 5, and 21.

The following table shows the IFCIDs used in I/O Activity reports.

Table 1. IFCIDs used for I/O Activity reports
I/O Activity reports IFCIDs used Db2 trace type and trace class
Buffer Pool 6, 7, 8, 9, 10, 105, 107 Performance, class 4
EDM Pool 29, 30, 105, 107 Performance, class 4
Active Log 34, 35, 36, 37, 38, 39 Performance, class 5
Archive Log/BSDS 34, 35, 36, 37, 40, 41, 114, 115, 116, 119, 120 Performance, class 5
Cross-Invalidation 105, 107, 255 Performance, class 21
Note: If you want to include Sequential Prefetch Read I/O operations in the report, do not qualify the DB2 START TRACE command with a plan name or an authorization ID. Such a qualification for performance trace class 4 reduces the data DB2 puts in the user's task TCB and omits all asynchronous tasks including Sequential Prefetch.