Re: RAID5 (RAIDFrame) performance seems low.

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

On Fri, Apr 09, 2010 at 06:18:24PM +0100, Ian Clark wrote:
> Hi All,
> Anywhoo, time has passed and it's time to replace the array with something a
> little larger, so this time I've gone for 3x2T HGST 7K2000 drives, however
> despite hoping for better write performance it's looking sofar to be much
> much worse, and I was wondering if anyone can suggest something I may have
> missed, or it really should be that slow.

1.) What does "dkctl wd<n> getcache" report for the new drives?

2.) Can you please provide the output of "disklabel -C raid0"?

You might also want to read ths article:

http://zhadum.org.uk/2008/07/25/raid-and-file-system-performance-tuning/

        Kind regards

-- 
Matthias Scheler                                  http://zhadum.org.uk/