On Jun 13, 2012, at 4:51 PM, Daniel Carosone wrote:
> On Wed, Jun 13, 2012 at 05:56:56PM -0500, Timothy Coalson wrote:
>> client: ubuntu 11.10
>> /etc/fstab entry: <server>:/mainpool/storage /mnt/myelin nfs
>> bg,retry=5,soft,proto=tcp,intr,nfsvers=3,noatime,nodiratime,async 0
>> 0
>
> nfsvers=3
>
>> NAME PROPERTY VALUE SOURCE
>> mainpool/storage sync standard default
>
> sync=standard
>
> This is expected behaviour for this combination. NFS 3 semantics are
> for persistent writes at the server regardless - and mostly also
> for NFS 4.
NB, async NFS was introduced in NFSv3. To help you easily see NFSv3/v4
async and sync activity, try nfssvrtop
https://github.com/richardelling/tools
-- richard
--
ZFS and performance consulting
http://www.RichardElling.com
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