AWR report shows "Disk File Mirror Read" in the Top 5 Timed Foreground Events (Doc ID 1913253.1)

Last updated on AUGUST 04, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 to 12.1.0.2 [Release 11.2 to 12.1]
Information in this document applies to any platform.

Symptoms

The "Disk file Mirror Read" waits are observed in the Top 5 Timed Foreground Events section of the AWR report, like this:

Cause

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