Oracle OpenStack 4.0.1: Creating Backup of volume on NFS Fails with "Unexpected error while running command.\nCommand: mount -t nfs -o vers=4,minorversion=1"

(Doc ID 2400284.1)

Last updated on MAY 30, 2018

Applies to:

Oracle OpenStack for Oracle Linux - Version OpenStack 4.0.1 and later
Linux x86-64

Symptoms

Specify nfs as Cinder backup driver:

$ kollacli property set cinder_backup_driver nfs

$ kollacli property set cinder_backup_share hostname:path

After deploymenmt, creating backup of volume gives error as below:

# cinder backup-show daa284ba-49b0-41cc-a657-cb1db0bbff27
(snip)
| fail_reason | NFS mount failed for share nfsserver.oracle.com:/openstack. Error - {'pnfs': u"Unexpected error while running command.\nCommand: mount -t nfs -o vers=4,minorversion=1
nfsserver.oracle.com:/openstack |
(snip)

 

Cause

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