ASM Instance Is Showing As Down (Io exception: The Network Adapter could not establish the connection)

(Doc ID 986793.1)

Last updated on JANUARY 13, 2018

Applies to:

Enterprise Manager for Oracle Database - Version 10.2.0.5 to 11.1.0.1 [Release 10.2 to 11.1]
Information in this document applies to any platform.

Symptoms

Grid Control monitoring a RAC database with ASM.

The +ASM instance is showing down, when its not. If trying to connect to the +ASM instance after correctly entering sys and the correct password in the EM console, you get "Io exception: The Network Adapter could not establish the connection".

Changes

 

Cause

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