On Sun, Nov 19, 2017 at 7:08 PM, Arman Khalatyan <arm2arm@gmail.com> wrote:
Hi, in our environment we got pretty good io performance on VM, with following configuration:
lustrebox: /lust mounted on "GATEWAY" over IB
GATEWAY: export /lust as nfs4 on 10G interface
VM(test.vm): import as NFS over 10G interface

[root@test.vm ~]# dd  if=/dev/zero bs=128K count=100000

Without oflag=direct, you are hitting (somewhat) the cache.
 

of=/test/tmp/test.tmp
100000+0 records in
100000+0 records out
13107200000 bytes (13 GB) copied, 20.8402 s, 629 MB/s 
looks promising for the future deployments.

Very - what's the backend storage?
 

only one problem remains that on heavy io I get some wornings that the vm network is saturated, are there way to configure the bandwidth limits to 10G for the VM Interface??

Yes, but you really need a dedicated storage interface, no?
Y.
 


thank you beforehand, 
Arman.

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