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Converting Single Instance to RAC is failing with: The instance prefix is invalid. Give a prefix with maximum 8 characters.It may be different from SID of existing single-instance database. (Doc ID 2222668.1)

Last updated on AUGUST 29, 2018

Applies to:

Enterprise Manager for Oracle Database - Version 12.1.0.8.0 and later
Information in this document applies to any platform.

Symptoms

 When trying to convert a single instance database to RAC with emcli, the operation is failing with:

The instance prefix is invalid. Give a prefix with maximum 8 characters.It may be different from SID of existing single-instance database.

Cause

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