Hi all,
We have a a few servers conected via 10g nic LACP, some of them have 4nic
and some have 6nic in a link aggregation mode. We been moving a lot of data
around and we are trying to get the maximum performance. I have seen zpool can
deliver 2-3GB accumulated throughput. Iperf does about
On Fri, 16 Sep 2016, Ergi Thanasko wrote:
Given the hardware that we have and the zpool performance, we
expected to see some serious data transfer rates however we only see
around 200-300MB/sec average using rsync or copy paste over NFS.
Standard MTU 1500 and nfs block size. I want to ask the
Hi Bob,
We were testing it between two similar servers rsynic and copy paste both
ways ( read/write) was the same around 300MB/sec average. Of course the speed
test on the pools provide higher throughput around 600MB/sec
[cid:449A210A-451D-40E1-97EA-98BA5E7FA558@fios-router.home]
On Sep 16,
Jumbo frames are a major help. Also, try using multiple streams (break single
rsync job into multiple jobs). Also be sure to use rsync native protocol and
don't tunnel it over ssh. Then there's bbcp which can push a single copy
operation into multiple streams to fully saturate your disks/network
I have made some investigations into 10G and found that 300-400MB/s is
expected with default settings. Improvements are possible up to 1000MB/s
via mtu 9000 and if you increase ip buffers ex
max_buf=4097152 tcp
send_buf=2048576 tcp
recv_buf=2048576 tcp,
NFS lockd servers (ex 1024), NFS number o
On Fri, 16 Sep 2016, Ergi Thanasko wrote:
We were testing it between two similar servers rsynic and copy paste
both ways ( read/write) was the same around 300MB/sec average. Of
course the speed test on the pools provide higher throughput around
600MB/sec
I am not sure what 'copy paste' means
Hope not be wrong here but Port Trunking usage deserves its part in the
whole picture too: be aware that using Port Trunking (with LACP as per IEEE
802.3ad) between your Servers' NIC and your 10Gb Switching infrastructure -
and this happens by aggregating "n" identical ports together on both link's
Are you doing the rsync over ssh? You might want to look into using HPN-SSH:
https://www.psc.edu/index.php/hpn-ssh
/dale
> On Sep 16, 2016, at 1:43 PM, Ergi Thanasko wrote:
>
> Hi all,
> We have a a few servers conected via 10g nic LACP, some of them have 4nic
> and some have 6nic in a lin
no that is even slower, just rsync over mounted nfs, a multithreaded rsync
does work have better performance.
[cid:449A210A-451D-40E1-97EA-98BA5E7FA558@fios-router.home]
On Sep 16, 2016, at 5:24 PM, Dale Ghent
mailto:da...@omniti.com>> wrote:
Are you doing the rsync over ssh? You might want t
HI Gea,
Great info, are you seeing 1000MB/s doing iperf or actually transfer rates
rsync, cp bbcp….
> On Sep 16, 2016, at 12:57 PM, Guenther Alka wrote:
>
> I have made some investigations into 10G and found that 300-400MB/s is
> expected with default settings. Improvements are possible up t
Am 17.09.16 um 00:40 schrieb Davide Poletto:
Hope not be wrong here but Port Trunking usage deserves its part in
the whole picture too: be aware that using Port Trunking (with LACP as
per IEEE 802.3ad) between your Servers' NIC and your 10Gb Switching
infrastructure - and this happens by aggr
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