[DRBD-user] DRBD deadly slow

Nathan Stratton nathan at robotics.net
Fri Nov 21 17:34:12 CET 2008

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

On Fri, 21 Nov 2008, Felix Zachlod wrote:

> Are there any further paramters that might cap my write performance to that 
> 50MByte/s?

What is your speed to the raw disk without DRBD? I just found that 
upgrading the firmware on my 3Ware 9650SX cards caused my DRBD write speed 
to jump from 57 MB/s to 224 MB/s* only about 10% hit from RAW.

*over 10 Gb/s Infiniband IPoIB.

Nathan Stratton                                CTO, BlinkMind, Inc.
nathan at robotics.net                         nathan at blinkmind.com
http://www.robotics.net                        http://www.blinkmind.com

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