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Old 06-03-2015, 04:47 PM   #1
Whatswithmynick
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Registered: Jun 2015
Posts: 3

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nfs4 is making me pull my hair :-(


Hi folks

I am really frustrated with NFS4 and finally have to resort to forums to solve my issue.
I have an Ubuntu 12.04 server running NFSv4 and it has two storage directories (mounted from GFS, but thats irrelevant i guess)
df -h
Code:
gfs:/vol00  7.2T  2.1T  4.8T  31% /data/digcolproc
gfs:/vol01  7.2T  137M  6.8T   1% /data/devbackup
As suggested by NFS4, i have made a bind to it to /exports
--- /etc/fstab

Code:
gfs:/vol00	/data/digcolproc	glusterfs	defaults	0 0
/data/digcolproc	/exports/digcolproc	none	bind	0 0
gfs:/vol01	/data/devbackup	glusterfs	defaults	0 0
/data/devbackup		/exports/devbackup	none	bind	0 0
Here is the /etc/exports
Code:
/exports        10.24.86.0/24(rw,sync,fsid=0,crossmnt,no_subtree_check)
/exports/digcolproc  10.24.86.0/24(rw,sync,no_subtree_check)
/exports/devbackup  10.24.86.0/24(rw,sync,no_subtree_check)
----
First issue:
On restarting nfs-kernel-server, i get the following
Code:
exportfs: /exports/devbackup requires fsid= for NFS export
exportfs: /exports/digcolproc requires fsid= for NFS export
----
Second issue
If i still ignore it and proceed to mount those directories in the client side, it tells me its mounted but i don't think it mounts the right directory. there is nothing inside it (but on the server there are lots of files). Also the size is 42 GB while it should be 7.2 TB :-/
Code:
Filesystem               Size  Used Avail Use% Mounted on
10.24.86.70:/digcolproc   42G  1.6G   38G   4% /data
10.24.86.70:/devbackup    42G  1.6G   38G   4% /data2
Here is the /etc/fstab of the client side
Code:
10.24.86.70:/digcolproc	/data	nfs4	defaults	0 0
10.24.86.70:/devbackup	/data2	nfs4	defaults	0 0
Can someone please help me figure out what am doing wrong here?

Thanks a lot
 
Old 06-03-2015, 06:44 PM   #2
Sefyir
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Registered: Mar 2015
Distribution: Linux Mint
Posts: 531

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So fix the first issue, set fsid? I notice your /etc/exports file does not have fsid=n
http://www.systutorials.com/1636/set...-tmpfs-devshm/

See if fixing it fixes the second issue.

Last edited by Sefyir; 06-03-2015 at 06:46 PM.
 
Old 06-04-2015, 04:04 AM   #3
Whatswithmynick
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Registered: Jun 2015
Posts: 3

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According to NFS4, only the root directory should have an fsid=0 and the derived directories should have no fsid at all. But anyway i assigned the two sub exports as fsid=1 and 2 and that messed up the whole thing. First of all the second directory did not mount and gave errors saying server access denied. When i took out the first mount and exported only the second one, it worked - which means there is no issue with permissions

Can someone please help me with mounting multiple directories using NFS4?

Thanks in advance
 
Old 06-04-2015, 09:09 AM   #4
Whatswithmynick
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Registered: Jun 2015
Posts: 3

Original Poster
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Well i found the problem atleast...the problem is i am trying to export a mounted file system and nfs4 doesn't seem to handle that...

Does anyone has a solution for this please?
 
  


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