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.