My Oracle Support Banner

Oracle VM: OVS (Dom0) Node Failed to Survive STORAGE Controller Outage Due to Wrong DMMP (multipath.conf) and o2cb timeout Settings (Doc ID 2022679.1)

Last updated on OCTOBER 10, 2022

Applies to:

Oracle Cloud Infrastructure - Version N/A and later
Oracle VM - Version 3.1.1 to 3.4.6 [Release OVM31 to OVM34]
Linux x86-64
Linux x86


Customer Example scenario:

While there was Storage outage each OVS node started to report LUN paths issue but one of the node (node3) restarted automatically while other two 'survived' Storage Outage:




To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
 1. Multipath configuration and SCSI timeout
 2. O2CB Disk heartbeat timeout
 3. As side note: Keep your kernel and device-mapper-multipath updated

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.