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.