[DRBD-user] Fixed - DRBD write throughput very very bad

[Tobias Appel]

Just wanted to let the list know that I made tremendous improvements 
with my performance issues.

I'm using RHEL5 and before I just installed DRBD using yum. The only 
package availabe was 8.0.13 and the performance was very bad.

I know manually removed this version and installed 8.3.1 and the 
performance is really good. Before I had a throughput of max 8 MB/s when 
writing large files to the DRBD partition, now I got 60 MB/s.

I still have to do a bit of testing to see how the performance is with a 
real application but for everyone who uses RHEL5 I can just say one thing:

Stay away from the old DRBD version which you can install via yum! 
Download 8.3.1 and build it yourself (works like a charm and doesn't 
take more then 2 minutes)!

Regards,
Tobi