From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mauricio Subject: Re: AW: Raid 1 vs 5 ? Date: Wed, 9 Jun 2004 09:27:02 -0400 Sender: linux-raid-owner@vger.kernel.org Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" ; format="flowed" Return-path: In-Reply-To: To: LinuxRaid List-Id: linux-raid.ids At 07:10 +0200 5/7/04, Martin Bene wrote: > > Which one is the better choice and what are the trade offs? Or is >> another configuration more sensible? I'm under the impression that you >> shouldn't (can't?) boot from RAID 5. > >Depends very much on what you're going to do with the system - I've >found a high performnce impact of raid5 for database applicaions with >frequent updates (where you end up with lots of small writes scattered I've always thought raid1 would be slower than, say, raid0+1 or raid5. I guess I am wrong then. =) >allover the partition). If write speed isn't too important, the space >savings may well make raid5 more attractive. What about raid0+1 vs raid5? What is the difference? In my setup, I plan on using the raid just to store user data; the machine would boot (/, /usr, swap, /var) from an unraid disk.