[PVE-User] Slow speeds when KVM guest is on NFS

Brian :: bc at iptel.co
Tue Nov 15 22:33:13 CET 2016


90.4 MB/s isn't that far off.


On Tue, Nov 15, 2016 at 5:25 PM, Mikhail <m at plus-plus.su> wrote:
> On 11/15/2016 06:09 PM, Gerald Brandt wrote:
>> I don't know if it helps, but I always switch to NFSv4.
>
> Thanks for the tip. This did not help. I also tried with various caching
> options (writeback, writethrough, etc) and RAW disk format instead of
> qcow2 - nothing changed.
>
> I also have LVM over iSCSI export to that Proxmox host, and using LVM
> over network (to the same storage server) I'm seeing expected speeds
> close to 1gbit.
>
> So this means something is either wrong with NFS export options, or
> something related to that part.
>
>
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