Hello!

maybe slightly ot

I hardly try to get an 3w-9xxx 12 port sata raid on an tyan-2882 (dual
opteron 246, 4gb ram) to work well on an SL 4.

my problem is that i have a write-rate something about 20mb/s. I already
tried it with:

blockdev -satra 16384
3ware FW Update on 9.2.1
Kernel Update 2.6.12.2
numa off
complety other distribution ubuntu warty (64bit version)

I ran tiobench and bonnie++ on ext3 and xfs, but I always get only
20mb/sec. In iostat I can see that I have about 80-90% iowait.


I double checked that I switched on the wrtite cache.

Maybe somebody has an idea

regards!

sven