[sheepdog-users] sheepdog R/W speed from remote Server is very bad than loacal access

Andrew J. Hobbs ajhobbs at desu.edu
Thu Aug 28 15:59:51 CEST 2014

Gateway performance is very slow.  If you are not going to be running a 
full sheep node on server B and simply want it to host VMs I would look 
at using iSCSI or the nbd mode of qemu.

On 08/28/2014 09:48 AM, redtone wrote:
> I have two servers, server A run sheepdog in storage mode and server B run
> sheepdog in gateway mode.
> The sheepdog use separate 1Gbps NIC to handle the IO request. The 2 NICs are
> connected to 1Gbps switch.
> When I run VM on server A. the virtual disk read speed is 450M and the write
> speed is 150M
> When I run VM on server B. the virtual disk read speed is 30M and the write
> speed is 25M. when I monitor the NIC's with iftop. The network speed is
> 200Mbps-280Mbps.
> So I think there are throttle when I access the storage form server B to A.
> How to improve the network performance?

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