Exalogic: IB Network (EoIB & IPoIB) Not Working With "ibstat" Command Failing With Error: "ibwarn: [16597] umad_init: can't read ABI version from /sys/class/infiniband_mad/abi_version (No such file or directory): is ib_umad module loaded?" (Doc ID 2101143.1)

Last updated on JANUARY 29, 2016

Applies to:

Oracle Exalogic Elastic Cloud Software - Version 2.0.6.0.0 and later
Linux x86-64
Oracle Virtual Server x86-64

Symptoms

In Exalogic Linux Physical and Virtual racks, issue of Compute Nodes or Guest vServers having no IB network connectivity both EoIB and IPoIB is seen. In case of Compute Nodes only Management interface works.

VNICs status on the IB Switches is shown as WAIT-IOA status as seen below

Cause

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