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

[redtone]

I also use server B to connect server A's IP directly. The result is the
same.

So the sheepdog performance is bad when it be accessed remotely?

-----邮件原件-----
发件人: sheepdog-users [mailto:sheepdog-users-bounces at lists.wpkg.org] 代表
Andrew J. Hobbs
发送时间: 2014年8月28日 22:00
收件人: sheepdog-users at lists.wpkg.org
主题: Re: [sheepdog-users] sheepdog R/W speed from remote Server is very bad
than loacal access

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?
>
>