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Determining when to Replace Disks on Oracle Database Appliance (Doc ID 1497610.1)

Last updated on JUNE 10, 2021

Applies to:

Oracle Database Appliance X3-2 - Version All Versions to All Versions [Release All Releases]
Oracle Database Appliance X4-2 - Version All Versions to All Versions [Release All Releases]
Oracle Database Appliance X5-2 - Version All Versions to All Versions [Release All Releases]
Oracle Database Appliance - Version All Versions to All Versions [Release All Releases]
Oracle Database - Enterprise Edition - Version 11.2.0.4 to 11.2.0.4 [Release 11.2]
Oracle Enterprise Linux 4.0

Purpose

This document explains the I/O errors seen in /var/log/messages, and how to determine if the disk is faulted and needs replacement.

Troubleshooting Steps

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In this Document
Purpose
Troubleshooting Steps
 The standard data required for troubleshooting disk issues is odasundiag output.
 Errors for which Disk Replacement is Recommended:
 1) oakcli reports the disk as FAILED
 2) oakcli reports the disk as PredictiveFail status
 3) There are many predictive fault errors in messages log as reported by smartd.
 4) Disk is missing from oakcli.
 5) iostat output shows high utilization on a particular disk drive.
 6)  There are "predictive fault" errors in the messages log.
 7) ASM has dropped the disk
References

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