Oracle DB IOPS bug

There is a bug in Oracle Database version 19.11.0.0 and 19.12.0.0 that affects value for metric "I/O Requests per Second" from the table v$sysmetric_history.
After upgrading the database this metric's value grows over time and thus making it inaccurate.
The value can be reset by restarting the affected database, but this wont stop the value from growing again.

More info:community.oracle.com/mosc/discussion/4503512/wrong-metrics-in-oem-13-5-performance-home-i-o-requests-per-second
It is fixed here: Patch 33421440: AWR IO STATS AND V$IOFUNCMETRIC AND SHOWING WRONG VALUE AFTER 19.10

Last updated: 2026-05-04