Subject: Re: [vserver] NFS and tagging problem
From: Adeline Gilles <adeline.gilles@ac-montpellier.fr>
Date: Wed, 22 Oct 2008 13:43:56 +0200

Kamila Cerna a écrit :
> Adeline Gilles napsal(a):
>> Kamila Cerna a écrit :
>>> Hello,
>>>
>>> I have a problem with tagging on filesystem mounted through nfs (on 
>>> Debian).
>>> I am using kernel+patch 2.6.22.19-vs2.3.0.34 on both servers (nfs 
>>> server + nfs client).
>>> I have enabled option CONFIG_TAG_NFSD in kernel on both servers.
>>>
>>> The configuration -
>>> on nfs server (/etc/exports):
>>> /var/lib/vservers   192.168.192.1(rw,no_root_squash,no_subtree_check)
>>>
>>> on nfs client (/etc/fstab):
>>> 192.168.192.254:/var/lib/vservers  /var/lib/vservers    nfs          
>>> rw,tag            0    0
>>>
>>> When I try to mount it, I get:
>>>
>>> host01:~# mount /var/lib/vservers/
>>> Unsupported nfs mount option: tag
>>>
>>> Without "tag" option, I can normally mount it.
>>>
>>> Is this some known problem or have I something wrong, please?
>>>
>>> Thanks,
>>>
>>> Kamila
>>>
>>>
>> Hi,
>>
>> I see no "tag" option in nfs man page.
>> You can read it here:
>>
>> http://www.linuxmanpages.com/man5/nfs.5.php
> 
> Hello,
> 
> I know there is no "tag" option in nfs man page.
> That's why I have enabled option in kernel: CONFIG_TAG_NFSD
> 
> CONFIG_TAG_NFSD:
> Enable this if you do want the in-kernel NFS  Server to use the tagging 
> specified above.
> (will require patched clients too)
> 
> Maybe I don't understand well to "will require patched clients too".
> Do I need to compile "nfs client" with some patch or I need only to have 
> patched kernel with this option on "nfs client server"
> If I need to compile "nfs client" with some patch, where can I get this 
> patch, please?
>>
>> What do you intend to do with this option?
> Option "tag" is for disk limits: 
> http://linux-vserver.org/Disk_Limits_and_Quota
> 
> 
> Thanks,
> 
> Kamila
> 

Sorry I didn't understand your mail.
I can't help you since I have no knowledge about NFS...

According to what i read, you could try to add tag option in your 
/etc/exports file.

-- 
Adeline Gilles
Groupe Systèmes Réseaux
Rectorat de Montpellier
tel : 04.67.91.45.70
fax : 04.67.02.06.13