Database reads

Reads are counted as key or nonkey reads.

No database reads are collected if DBIO=NONE (except for DEDBs and MSDBs).

The database read counts are collected at the database level with both DBIO=BFALTERS and DBIO=IOWAITS.

Reads caused by access through a secondary index or logical database are counted with DBIO=BFALTERS and DBIO=IOWAITS, but are shown for the actual target DBD (DBPCB).

Note

This process may cause key I/O to appear for nonkey databases, such as HDAM.

Related topic

Database I/O data

 

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