Thank you for reporting back.
I don't have to use async with my NFS share. Its not the same comparison,
but just for metrics I am running an
HP dl380 with 2x6cores and 24GB of ram, with 16 disks in raidz2 with 4
vdevs. Backend is ZFS. Connections are 10GBE
I get great performance from my setup.
On Sat, Aug 1, 2015 at 9:00 PM, Matthew Lagoe <matthew.lagoe(a)subrigo.net>
wrote:
You can run without async so long as your nfs server can handle sync
writes
quickly
-----Original Message-----
From: users-bounces(a)ovirt.org [mailto:users-bounces@ovirt.org] On Behalf
Of
Alan Murrell
Sent: Saturday, August 01, 2015 05:37 PM
To: users
Subject: Re: [ovirt-users] Poor guest write speeds
Hi Donny (and everyone else who uses NFS-backed storage)
You mentioned that you get really good performance in oVirt and I am
curious
what you use for your NFS options in exportfs? The 'async'
option fixed my performance issues, but of course this would not be a
recommended option in a production environment, at least unless the NFS
server was running with a BBU on the RAID card.
Just curious. Thanks! :-)
-Alan
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Donny Davis