From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Scobie Subject: Re: swap on raid Date: Fri, 02 Mar 2007 12:07:40 +1300 Message-ID: <45E75CBC.2050003@sauce.co.nz> References: <20070301222739.GA4835@rabbit.us> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20070301222739.GA4835@rabbit.us> Sender: linux-raid-owner@vger.kernel.org To: Linux RAID Mailing List List-Id: linux-raid.ids Peter Rabbitson wrote: > Hi, > > I need to use a raid volume for swap, utilizing partitions from 4 > physical drives I have available. From my experience I have three > options - raid5, raid10 with 2 offset chunks, and two raid 1 volumes > that are swapon-ed with equal priority. However I have a hard time Another option here would be a 4 disk RAID1, on the basis that it's giving you a simple, highly redundant setup. If the performance requirement is such that you need the speed of RAID5, 10 etc., then you probably need to be looking at adding RAM or otherwise avoiding swapping in the first place. The fact that you mention you are using partitions on disks that possibly have other partions doing other things, means raw performance will be compromised anyway. Regards, Richard