From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stan Hoeppner Subject: Re: raid5 to utilize upto 8 cores Date: Fri, 17 Aug 2012 03:29:37 -0500 Message-ID: <502E00F1.8090207@hardwarefreak.com> References: <502C8C18.5070501@hardwarefreak.com> Reply-To: stan@hardwarefreak.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: vincent Ferrer Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On 8/16/2012 5:11 PM, vincent Ferrer wrote: > On Wed, Aug 15, 2012 at 10:58 PM, Stan Hoeppner wrote: >> On 8/15/2012 9:56 PM, vincent Ferrer wrote: >> >>> - My storage server has upto 8 cores running linux kernel 2.6.32.27. >>> - I created a raid5 device of 10 SSDs . >> >> No it is not normal practice. I 'preach' against it regularly when I >> see OPs doing it. It's quite insane. >> >> There are a couple of sane things you can do today to address your problem: >> >> Stan >> > > Hi Stan, > Follow-up question for 2 types of setups i may have to prepare: > 1) setup A has 80 SSDs. This is simply silly. There's no need for exaggeration here. > 2) Setup B has only 12 SSDs. Question: Is it more practical to > have only one raid5 device, even though I may have 4-5 physically > different clients or create 2 raid5 devices each having 6 SSDs. As I repeat in every such case: What is your workload? Creating a storage specification is driven by the requirements of the workload. -- Stan