From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Liontooth Subject: Re: RAID 16? Date: Thu, 02 Feb 2006 16:59:20 -0800 Message-ID: <43E2AAE8.7000507@cogweb.net> References: <200602030020.k130KGq13372@www.watkins-home.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200602030020.k130KGq13372@www.watkins-home.com> Sender: linux-raid-owner@vger.kernel.org To: Guy Cc: 'Mario 'BitKoenig' Holbe' , linux-raid@vger.kernel.org List-Id: linux-raid.ids I appreciate all the expert feedback on this. We'll be able to make a well-informed decision on how to proceed. Best, Dave Guy wrote: >He can loose 1 disk from any 2 RAID1 arrays. And then 2 disks from the >other 2 RAID1 arrays. A total of 6 of 8 disks can fail if chosen correctly. > >I would go with an 8 disk RAID6, which would give the space of 6 disks and >support any 2 disks failing. Or a 7 disk RAID6 with 1 spare, but I think >that is over kill. > >Guy > >} -----Original Message----- >} From: linux-raid-owner@vger.kernel.org [mailto:linux-raid- >} owner@vger.kernel.org] On Behalf Of Mario 'BitKoenig' Holbe >} Sent: Thursday, February 02, 2006 1:42 PM >} To: linux-raid@vger.kernel.org >} Subject: Re: RAID 16? >} >} Matthias Urlichs wrote: >} > Hi, David Liontooth wrote: >} >> * define 4 pairs of RAID 1 with an 8-port 3ware 9500S card * the OS >} will >} > Hmm. You'd have eight disks, five(!) may fail at any time, giving you >} >} Four, isn't it? >} RAID6 covers the failure of 2 of the underlying RAID1s, which, in turn, >} means failures of 2 disks each, so four. >} Sometimes even 5, yes - given the right ones fail. >} >} >} regards >} Mario >} -- >} We are the Bore. Resistance is futile. You will be bored. >} >} - >} To unsubscribe from this list: send the line "unsubscribe linux-raid" in >} the body of a message to majordomo@vger.kernel.org >} More majordomo info at http://vger.kernel.org/majordomo-info.html > >- >To unsubscribe from this list: send the line "unsubscribe linux-raid" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html > >