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Production ODA VMs Went Into UNKNOWN State And Base Nodes Had Load Average Of 130 And High I/O Wait (Doc ID 2413087.1)

Last updated on JUNE 26, 2018

Applies to:

Oracle Database Appliance X5-2 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.


The event is VM unresponsiveness going into UNKNOWN state
then all the VM's that were running on the two nodes disappeared.
high load average (> 130) on basenode with high CPU I/O wait utilization
"df -h" where NFS mounts appear to be hung.

servers experienced I/O on loop devices that belong to VMs which causes the hang on VMs

while investigating the oakcli command showed no repo filesystems present -- (athough they were still showing as mounted).
"crsctl check crs" could not communicate to the cluster ready services.

'...Using the srvctl command from ODA_BASE would hang...'




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