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

Digimer linux at alteeve.com
Fri Jan 27 21:34:23 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.


On 01/27/2012 08:35 AM, 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.
> 
> How can I increase the syncer rate in drbd84?

I have not played with 8.4 yet, but if it is the same as 8.3, you should
be able to push up the sync rate to 300MB/sec using;

drbdsetup /dev/drbdX syncer -r 300M

-- 
Digimer
E-Mail:              digimer at alteeve.com
Papers and Projects: https://alteeve.com



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