On 03/28/2012 09:30 AM, Morgan Cox wrote:
Hi.

My setup is 3 servers

1. Frontend (engine).
2 Ovirt node
3. Nfs server (debian)

 From the Frontend (engine) :-

-bash-4.2$ ls -la
/tmp/test/2f7ee7bc-09b3-42ba-af91-40d79293e360/images/d1fcc1ae-dcf5-426e-a99f-3a48e84c5ae3/
total 2097168
drwxr-xr-x. 2 vdsm kvm       4096 Mar 28  2012 .
drwxr-xr-x. 3 vdsm kvm       4096 Mar 28  2012 ..
-rw-rw----. 1 vdsm kvm 2147483648 Mar 28  2012
9fe193c9-7139-4a6c-933a-c6f31d5e96bd
-rw-r--r--. 1 vdsm kvm        317 Mar 28  2012
9fe193c9-7139-4a6c-933a-c6f31d5e96bd.meta


I have (now) write access with vdsm user from here

 From the node (look at ownership....) :-


-bash-4.2$ ls -la
/rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/2f7ee7bc-09b3-42ba-af91-40d79293e360/images/d1fcc1ae-dcf5-426e-a99f-3a48e84c5ae3/
total 2097168
drwxr-xr-x. 2 4294967294 4294967294       4096 Mar 28 13:21 .
drwxr-xr-x. 3 4294967294 4294967294       4096 Mar 28 13:05 ..
-rw-rw----. 1 4294967294 4294967294 2147483648 Mar 28 13:05
9fe193c9-7139-4a6c-933a-c6f31d5e96bd
-rw-r--r--. 1 4294967294 4294967294        317 Mar 28 13:05
9fe193c9-7139-4a6c-933a-c6f31d5e96bd.meta

Morgan,
Look at the UID/GID here. They are definitely not 36:36; hence, the user VDSM *might* have an issue with R/W privileged from the node.

Can the user VDSM R/W anything in the mounted directory from the node? Also, if you don't want to create a UID/GID combination on the NFS server of 36:36 try pinning it...
$ cat /etc/exports
/virt/iso 192.168.122.11(rw,sync,all_squash,anonuid=107,anongid=107) <-- I'm pinning to 107 because I don't want 36:36 on my NFS server.




Also

 From the engine - mount command:-

10.0.0.190:/storage1/ on /tmp/test type nfs
(rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=10.0.0.190,mountvers=3,mountport=35065,mountproto=udp,local_lock=none,addr=10.0.0.190)

- note that the NFS share wasn't mounted until I mounted it...

 From the node - mount command

10.0.0.190:/storage1/ on /rhev/data-center/mnt/10.0.0.190:_storage1
type nfs4 
(rw,relatime,vers=4,rsize=1048576,wsize=1048576,namlen=255,soft,nosharecache,proto=tcp,port=0,timeo=600,retrans=6,sec=sys,clientaddr=10.0.0.101,minorversion=0,local_lock=none,addr=10.0.0.190)

- looks like nfs4 on the node........

Any ideas anyone ?

Cheers






On 28 March 2012 06:45, Deepak C Shetty<deepa...@linux.vnet.ibm.com>  wrote:
On 03/27/2012 04:08 PM, Morgan Cox wrote:

Hi

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

- This seems to refer to setup on a redhat based system

The fies it refers to do not exist on Debian - i.e

/etc/sysconfig/nfs and/etc/nfsmount.conf - they do not exist...

Do you know the equivalent on Debian ?


Sorry, i use fedora, and I dont know the equivalent of Debain.
Maybe asking the big brain(google) might help. There should be an
equivalent way of doing the same on debian.

Also in my case v4 was not a issue, as much as the perms and uid:gid
were, so look further to see perms and selinux booleans are
set correctly in your setup.


Regards


On 27 March 2012 07:07, Deepak C Shetty<deepa...@linux.vnet.ibm.com>  wrote:
On 03/26/2012 05:28 PM, Morgan Cox wrote:

Hi.

Still not actually managed to test a vm... I can start a VM (and use
spice) without a virtual disk.

However as soon as I add a virtual disk the VM no longer starts


Go thru this and see if it helps...
http://www.ovirt.org/wiki/Troubleshooting_NFS_Storage_Issues


example error message


-------------------------------------------------------------------------------------------------------------------
VM ddf is down. Exit message internal error process exited while
connecting to monitor: qemu-kvm: -drive
file=/rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/2f7ee7bc-09b3-42ba-af91-40d79293e360/images/c507a2bc-38c5-498e-88c0-7cce8169cf67/6c36c8e4-6618-42f3-9cc4-06d2bccdc9cf,if=none,id=drive-virtio-disk0,format=raw,serial=c507a2bc-38c5-498e-88c0-7cce8169cf67,cache=none,werror=stop,rerror=stop,aio=threads:
could not open disk image
/rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/2f7ee7bc-09b3-42ba-af91-40d79293e360/images/c507a2bc-38c5-498e-88c0-7cce8169cf67/6c36c8e4-6618-42f3-9cc4-06d2bccdc9cf:
Permission denied .

-------------------------------------------------------------------------------------------------------------------

I have noticed that the
directory /rhev/data-center/b2b2e054-66b2-11e1-bda3-1728f784de9e/ is not
writable via the ovirt node server.

I am using a separate NFS server for storage.

Is this a bug ?

Does anyone know how to fix this ?

shall I report it ?

Many regards !


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