Why does creating a storage domain using Netapp NFS share fails on RHEV?

Solution Unverified - Updated

Environment

  • Red Hat Enterprise Virtualization v3.0

Issue

  • On RHEV 3 environment, Netapp NFS share can be mounted manually on all hosts. But RHEV Manager GUI gives error which prevents using the NFS share to create a storage domain.

Resolution

  • The NFS share should be accessible from all hosts in the RHEV  Manager. So,  check your NetApp server and make sure that  ip-of-netapp-server:/vol/share/path is configured to be  accessible from all hosts.

  • Once the NFS share is accessible from both hosts, now set the correct ownership. RHEV will require that the NFS export  directory is owned by vdsm:kvm. On an external NFS server where these  users do not exist, set it up by running,

          # chown -R 36:36 /<export path>

As it's a Netapp share, you may have to mount the share to a server for changing the ownership.

Please follow the below steps to change the ownership.

mkdir /mnt/tmp
mount address:/path/to/nfs-share /mnt/tmp
chown 36:36 /mnt/tmp
umount /mnt/tmp

Then try to create storage domain using the share from NetApp server.

Diagnostic Steps

Following can be seen from the logs.

2011-10-06 12:37:20,490 ERROR [org.nogah.bll.storage.NFSStorageHelper] (http-0.0.0.0-8443-20) The connection with details 
192.168.10.128:/vol/test_data1/data1 failed because of error code 453 and error message is: the specified path does not exist or 
cannot be reached. verify the path is correct, and for remote storage, check the connection to your storage
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