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@xxxxxxxxxxxxxxx [mailto:linux-raid- >} owner@xxxxxxxxxxxxxxx] On Behalf Of Mario 'BitKoenig' Holbe >} Sent: Thursday, February 02, 2006 1:42 PM >} To: linux-raid@xxxxxxxxxxxxxxx >} Subject: Re: RAID 16? >} >} Matthias Urlichs <smurf@xxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxx >} 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@xxxxxxxxxxxxxxx >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@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
