[DRBD-user] drbd and 10Gb/s network how to increase syncer rate beyond 100MB/s?

Andreas Kurz andreas at hastexo.com
Sat Jan 28 23:26:17 CET 2012

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hello,

On 01/27/2012 02:35 PM, Maurits van de Lande wrote:
> Hello,
> 
>  
> 
> I have a couple of servers with SSD based raid arrays (capable of
> writing 550+MB/s to the disks). And a 10Gb/s network (HP NC552SFP
> network adapter HP E8206 network switches)
> 
>  
> 
> Before installing the 10Gb network adapter the syncrate was limited to
> around 102MB/s (1Gb/s?)
> 
> After Installing the 10Gb network adapter it was still impossible to get
> more than 102MB/s sync rate between the servers.
> 
> I would like to have a 300MB/s sync rate. When I set this as a fixed
> sync rate in my drbd84 resource file I noticed that this value is
> ignored and 102MB/s is used.

Just to be sure .... you are using the new 10Gbit interconnect in your
DRBD configuration ... and you already tested with iperf or the tool of
your choice that you can use the full bandwidth?

Regards,
Andreas

-- 
Need help with DRBD performance tuning?
http://www.hastexo.com/services/remote

> 
>  
> 
> How can I increase the syncer rate in drbd84?
> 
>  
> 
> Best regards,
> 
>  
> 
> Maurits van de Lande
> 
>  
> 
> |Van de Lande BV.|Lissenveld 1|4941VK |Raamsdonksveer|the Netherlands |T
> +31 (0) 162 516000 |F +31 (0) 162 521417 |www.vdl-fittings.com
> <http://www.vdl-fittings.com> |
> 
>  
> 
> 
> 
> _______________________________________________
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