[DRBD-user] Latency problems with DRBD 0.8.4 and a 3ware RAID5

Florian Apolloner florian at apolloner.eu
Mon Sep 5 15:38:30 CEST 2011


Hi,

On 08/31/2011 01:52 PM, Phil Stoneman wrote:
> On 31/08/11 12:46, Florian Apolloner wrote:
>> Any hints on how to debug that? I am currently grasping any straw I can
>> get :/
> 
> What are your configuration settings? Particularly, what do you have in
> the disk { ... } section regarding flushing to disk?

right now no-flushes and no-barriers so it falls back to drain --
waiting for my BBU to arrive *gg* I looks like that's the only way to
get a decent latency/throughput.

Cheers,
Florian

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