[Users] Can't add NFS domain

[Damiano Verzulli]

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(so you've switched discussing on the list. Ok. Let's go this way)

Il 04/09/2012 07:45, Changsen Xu ha scritto:
> [...] I just got vdsm compiled and installed on fresh FC17 (installed
> with live cd), used your 3.4.9 FC16 kernel. Yes, now, engine can add
> it as host, great. But engine still can't add NFS domain. Any idea
> what is happening?

To correctly troubleshoot your issues, please, ensure you're following
_all_ the steps suggested here:

    http://wiki.ovirt.org/wiki/Troubleshooting_NFS_Storage_Issues

In particular:

1 - confirm your node are running the 3.4 kernel (uname -a), as
installing the new kernel is not enough. Such kernel _must_ be running;

2 - confirm that your NFS server is configured:
	- to default to NFSv3 (refer to above wiki page);
	- with a correct export (refer to above wiki page). Please pay attention
to the need of having, on the NFS server, a USER with UID 36. Best if
related username is "vdsm";

3 - confirm that your FC17-nodes can "see" the exported mounts from the
NFS server by running, on the nodes:
	# showmount -e <ip_addr_of_the_NFS_server>


When all of above steps are confirmed, you can start troubleshooting
file-permission issues. In detail:

4 - from the FC17-node, manually mount the NFS share with something like:
	# mount -t nfs <NFS_server_ip_addr>:<NFS_mount> <temp_mount_point>
(in my case: mount -t nfs 10.0.49.14:/storage/NFS /tmp/test_nfs)
and then try to:
	- write a file in /tmp/test_nfs:
		# touch /tmp/test_nfs/test_file.txt
and rightafter check, on the NFS server, its ownership/permission. As
said in the wiki page, the test_file.txt should be owned by "UID 36" user
and should have 755 file-permission

5 - when the all of this is (succesfully) completed, you can retry adding
the NFS ISO-domain from the Engine.
BTW: if a previous addition attempt failed, in my case I needed to
manually remove, on the NFS server, the file/directory structure that
previous attempts generated.

HTH

Bye,
DV

P.S.: please, let's stick discussing on the list.

- -- 
Damiano Verzulli
e-mail: damiano at verzulli.it
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"Technical people tend to fall into two categories: Specialists
and Generalists. The Specialist learns more and more about a
narrower and narrower field, until he eventually, in the limit,
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  http://elists.isoc.org/mailman/private/pubsoft/2007-December/001935.html
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