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How to begin ADRCI sessions? (Doc ID 1456442.1)

Last updated on JANUARY 30, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A 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
Information in this document applies to any platform.


Most often there are multiple instances and possibly multiple ORACLE_HOMES all running at same machine. With 11g there is only one Automatic Diagnostic repository per machine and all different ADR clients (different products) dump into same ADR. If you are investigating incident at specific instance this can cause confusion. Also not all ADRCI commands support multiple ADR_HOMEs and you will see:

DIA-48448: This command does not support multiple ADR homes

This note explains how to prevent this problem and how to get started with ADRCI correctly.


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