Re: Hard disk lit-up like Christmas tree ???

Thomas Cataldo <[email protected]> Thu, 11 Sep 2003 21:14:33 +0200
Newsgroups gmane.comp.db.sapdb.general
Message-ID <1063307673.1376.2.camel@buffy>
On Thu, 2003-09-11 at 08:54, Arne Gehlhaar wrote:
> Kevin,
> 
> you are not using file devices on a ReiserFS partition as database 
> devices, are you? As you probably know, ReiserFS is a journaling 
> filesystem, meaning every access to the fs is logged in a journal, which 
> leads to a whole lot of extra i/o on your disk => not a very good idea 
> for database devices (volumes). Use raw devices instead.

Please have a look at this oracle 8i benchmark :

http://otn.oracle.com/oramag/webcolumns/2003/techarticles/scalzo_linux02.html

It clearly prooves you wrong as ext3 is the fastest performing fs on
this test, and raw devices is clearly a bad choice under linux.