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Oracle VM: Trying To Mount Nested NFS Shares Fails With Error: "OVMRU_002063E No utility server could be found for operation on repository" (Doc ID 2382936.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle VM - Version 3.3.1 and later
Information in this document applies to any platform.

Symptoms

After rebuilding the OVM data base, the NFS repositories are found to be pointing to an incorrect file system, or share, on the NFS File Server.  Instead of pointing to the correct F/S created for the repository it is mapped to the the root directory which is the top level directory for the repository's file system, this is known as a "Nested Export" and this is not supported by OVM.

After a rebuild of the OVM back-end DB this can be seen in the OVM Manager UI:

 

The correct file system for the repository on this example should be: 

nnn.nnn.nnn.nnn:/OVMs_Dev_DR

but instead we find:

nnn.nnn.nnn.nnn:/

  At the same time the repository on the OVM Manager UI is displayed like this:

 

When inspecting the published shares using the showmount -e command to the NFS filer, the following is shown indicating the configurations is a nested configuration where the top level directory is also exported in addition to other shared directories contained farther down the directory hierarchy:

# showmount -e nnn.nnn.nnn.nnn
Export list for nnn.nnn.nnn.nnn:
/OVMs_Dev_DR (everyone)
/ (everyone)

If this scenario is encountered, refreshing the repository will fail with the following error message:

OVMRU_002063E No utility server could be found for operation on repository: DEV DR Virtual Disks for OS and Binaries. These presented servers could not be used: 'no objects can be selected': - OVMAPI_A006E Cannot perform task on repository: DEV DR Virtual Disks for OS and Binaries, it is not presented on any servers. [Mon Mar 05 17:40:11 PST 2018]

All the OVS Servers that have the repository presented still show the correct file system being mounted.  This is only an OVM Manager UI issue generated after the back-end database has been rebuilt.

Changes

The OVM Manager data base back-end was rebuilt.

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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