On Mon, Feb 26, 2018 at 1:30 PM, Andrei Verovski <[email protected]> wrote:
> Hi, > > Since oVirt doesn’t support more then 1 host in data center with local > storage domain as described here: > http://lists.ovirt.org/pipermail/users/2018-January/086118.html > > I have to setup NFS server on node with VMs (on same node) access via NFS. > 10 GB shared storage is in the future plans yet right now have only 2 > nodes with local RAID on each. > > Q: What is VM disk speed penalty (approx %) NFS vs Local RAID in oVirt > data center storage? > Currently I have 2 VMs running our accounting/inventory control system > which are critical to storage performance limits. > 2 other VMs have very low disk activity. > I don't know, but please remember there's both latency and throughput, both of which are somewhat affected. Throughput will benefit from jumbo frames, for example. Unfortunately it may affect latency a bit. There was an interesting patch that if the NFS was local, bypassed the NFS[1]. It was never completed and merged. Lastly, chapter 6 at hyper-converged guide (should be available in few hours) might be an interesting idea for you to consider - a single Gluster that can later expand. Y. [1] https://gerrit.ovirt.org/#/c/68822/ [2] https://ovirt.org/documentation/gluster-hyperconverged/Gluster_Hyperconverged_Guide/ > > Thanks in advance > Andrei Verovski > > > _______________________________________________ > Users mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/users > >
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