On 9 Jun 2009, at 21:09, Bernd Ernesti wrote:
I tried to disable the write cache, but the slowdown effect still happend.
Disabling the write-cache will make since worse in my experience. I had really bad performance on a RAID 1 volume when the write-cache of one of the two hard disks was disabled because the weird OEM firmware. Kind regards -- Matthias Scheler http://zhadum.org.uk/