I've got now :

nfs_mount_options = soft,nosharecache,rsize=32768,wsize=32768,noatime

However, when I check the mounts on the host, it does not show these addtitional options used ? (only soft,nosharecache), here the mount output:

HV02:/vmfs/data.old2 on /rhev/data-center/mnt/HV02:_vmfs_data.old2 type nfs (rw,soft,nosharecache,timeo=600,retrans=6,nfsvers=3,addr=x.x.x8)
HV02:/vmfs/data on /rhev/data-center/mnt/HV02:_vmfs_data type nfs (rw,soft,nosharecache,timeo=600,retrans=6,vers=3,addr=x.x.x8)
HV03:/vmfs/data on /rhev/data-center/mnt/HV03:_vmfs_data type nfs (rw,soft,nosharecache,timeo=600,retrans=6,nfsvers=3,addr=127.0.0.1)

Above is after I restarted HV03 so it really should have mounted HV03:/vmfs/data with the new options

another question would be if "nolock" would be a good idea as it seems that nfs ops are sometimes being blocked by a lock ? at least, it behaves as if .. i havent further investigated yet.

Alex

On 23 January 2013 13:27, Itamar Heim <iheim@redhat.com> wrote:

On 22/01/2013 11:43, Haim Ateya wrote:

you can set it manually on each hypervisor by using vdsm.conf.

add the following into /etc/vdsm/vdsm.conf

[irs]
nfs_mount_options = soft,nosharecache

restart vdsmd service on the end.

you can also set them via a posixfs storage domain, but for nfs, an nfs storage domain is recommended over a posixfs one.
question is what is the use case for them, and should they be added for nfs domains as well.

----- Original Message -----

From: "Alex Leonhardt" <alex.tuxx@gmail.com>
To: "oVirt Mailing List" <users@ovirt.org>
Sent: Tuesday, January 22, 2013 1:46:56 AM
Subject: [Users] custom nfs mount options





Hi,

Is it possible set custom nfs mount options, specifically : noatime,
wsize and rsize ? I couldnt see anything when "adding a NFS domain"
- only timeout & retry.


Thanks!
Alex





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