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Value in the MAXVAL Column of Table DBA_HIST_SYSMETRIC_SUMMARY Seem High (Doc ID 2349733.1)

Last updated on MARCH 30, 2022

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

Value in the MAXVAL column of table DBA_HIST_SYSMETRIC_SUMMARY was 93.4ms. This appears to be high value for the I/O time for the system:

BEGIN_TIME                END_TIME                                        LATENCY_MAX LATENCY_AVERAGE

2017-12-15 18:00:23 2017-12-15 19:00: 24                      93.4                    1.6      <===93.4

 

Changes

 No changes were made.  Observation when querying the DBA_HIST_SYSMETRIC_SUMMARY table.

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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