ILOM Hangs When Compute Node Hangs In Exalogic X3-2, X4-2 and X5-2 Racks (Doc ID 1990121.1)

Last updated on JUNE 28, 2017

Applies to:

Exalogic Elastic Cloud X5-2 Hardware - Version X5 to X5 [Release X5]
Exalogic Elastic Cloud X4-2 Hardware - Version X4 to X4 [Release X4]
Exalogic Elastic Cloud X3-2 Hardware - Version X3 to X3 [Release X3]
Linux x86-64
Oracle Virtual Server x86-64
Applicable to all Physical Linux before July 2015 PSU 2.0.6.2.2 on Exalogic X3-2, X4-2 and X5-2 racks.
Applicable to all Virtual configurations before Oct 2015 PSU 2.0.6.2.3 on Exalogic X3-2, X4-2 and X5-2 racks.

Symptoms

When an application or operating system causes a compute node to hang, in some cases, it is observed that the node’s ILOM becomes unresponsive as well, making it impossible to remotely reset the node.  Recovery from this state requires a manual power cycle of the compute node in the data center. This leads to extended downtime and inconvenience, especially if the data center is remote and unmanned. 

Cause

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