I have the feeling that it's using the wrong Network.

Also, check if TrueNAS supports NFS Server-Side Copy.
In order to use that feature mount the share  via v4.2 .

Best Regards,
Strahil Nikolov

On Fri, Apr 30, 2021 at 19:10, David Johnson
<djohnson@maxistechnology.com> wrote:
Hi everyone,

When cloning a VM, I discovered that the time to close appears excessive based on the underlying platform I am using. It appears that the clone operation is not making efficient use of the network.  I have seen up to 4 GBits sustained throughput by applications on VM's on the cluster.

Is there a configuration I might be missing?

System specifics:
Backing store: NFS on TrueNAS running zRaid 3 on 11 spinning disks

Ovirt Controller: I7 desktop
General network: 1 GBit Ethernet

Ovirt Host:  Intel(R) Xeon(R) Silver 4216 CPU @ 2.10GHz, 2x32 cores, 256 GB RAM
Data Network: 10 GBit 10GBase-Twinax, dedicated to this Host and the TrueNAS

Copying the 60GB partition, the copy operation never exceeds 40 megabytes per second (less than 0.5 GBit), even though the dedicated 10 Gigabit data network is not otherwise busy.


David Johnson
Director of Development, Maxis Technology
844.696.2947 ext 702 (o) | 479.531.3590 (c)


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