[Centos] 3Ware Escalade 9500S controller question

Fri Sep 10 12:14:09 UTC 2004
Maurizio Sparesotto <maurizio at limpronta.net>

----- Original Message ----- 
From: "Shawn M. Jones" <smj at littleprojects.org>
> > You have to recompile the driver from source every time you do a kernel
> > update. Otherwise works great for me. Dont forget to do optimizations to
> > get max performance, there's some simple ones on 3ware's site that make
> > nice difference.
> Excellent!  Thanks Scott.  I can't wait until the rest of my drives come
> in so I can get started.  Looks like staying with CentOS over going to FC2
> is the right course of action for this server!  :-)

Last week I ricompiled the 3ware driver (7006-2), thank you Scott, to solve
a EXT3 errors and now all is ok and functionally, no EXT3 error after a
But when the server go a load average about 2.0/2.5 the CPU iowait go up to
70-80% ... impressive!

I found this thread very interesting:
but the only solution at my  problems is to recompile Kernel  with 3ware
driver statically compiled in.

I ricompiled the Kernel from source ( 2.4.27 ), in a server test, and now
the CPU iowait is about 3 - 5 % with the same load av.