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OLVM: Adding Host to OLVM Cluster Fails With The Message "Host cannot access the Storage Domain(s)" (Doc ID 2673207.1)

Last updated on SEPTEMBER 08, 2022

Applies to:

Linux OS - Version Oracle Linux 7.7 with Unbreakable Enterprise Kernel [4.14.35] and later
Linux x86-64


 Note: This issue is specific to NFS storage type.

Adding a new host to the existing cluster that has NFS domain attached to it fails with the following message :

"Host <hostname> cannot access the Storage Domain(s) <UNKNOWN> attached to the Data Center . Setting Host state to Non-Operational."

The following message logged in the /var/log/vdsm/vdsm.log:

2020-05-21 12:25:05,238+0530 WARN (jsonrpc/6) [storage.oop] Permission denied for directory: /rhev/data-center/mnt/x.x.x.x:_export_dat
a with permissions:7 (outOfProcess:196)
2020-05-21 12:25:05,238+0530 INFO (jsonrpc/6) [storage.Mount] unmounting /rhev/data-center/mnt/x.x.x.x:_export_data (mount:212)
2020-05-21 12:25:05,292+0530 ERROR (jsonrpc/6) [storage.HSM] Could not connect to storageServer (hsm:2420)
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/vdsm/storage/", line 2417, in connectStorageServer
File "/usr/lib/python2.7/site-packages/vdsm/storage/", line 431, in connect
return self._mountCon.connect()
File "/usr/lib/python2.7/site-packages/vdsm/storage/", line 191, in connect
six.reraise(t, v, tb)
File "/usr/lib/python2.7/site-packages/vdsm/storage/", line 184, in connect
File "/usr/lib/python2.7/site-packages/vdsm/storage/", line 89, in validateDirAccess
raise se.StorageServerAccessPermissionError(dirPath) 


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