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 FEBRUARY 20, 2018

Applies to:

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


In Exalogic Linux Physical and Virtual racks, issue of Compute Nodes(Physical rack) or Guest vServers (virtual rack) 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




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