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Unable to Discover Nodes or Cells in Exadata Database Machine (DBM) - EM 12c or 13c (Doc ID 1379836.1)

Last updated on JANUARY 31, 2020

Applies to:

Oracle Exadata Storage Server Software - Version 11.2.1.2.0 to 12.1.2.2.3 [Release 11.2 to 12.1]
Enterprise Manager for Exadata - Version 12.1.0.1.0 to 13.2.1.0.0 [Release 12.1 to 13c]
Information in this document applies to any platform.

Symptoms

In attempting to discover an Exadata Database Machine (DBM) in EM 12c or 13c, nodes or cell servers may be left off of the discovery and remain missing.

Or you may see the following error and notice there are no nodes listed in the Exadata component summary page:

"there must be at least one compute node, one oracle Exadata Storage Server..”

while discovering the Exadata DBM.

 

Cause

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