Important: Intermittent ASM or DB instance eviction due to IPC Send timeout or ORA-27508 or ORA-27301: Network is unreachable (Doc ID 1594578.1)

Last updated on DECEMBER 01, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.2 and later
Generic UNIX
Generic Linux

Symptoms

Multi node RAC cluster, intermittently instance eviction happens either at ASM layer or database layer. Here are the example of ASM alert logs:

Similar errors can be seen in database alert log when an instance is evicted.

Cause

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