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Subject: Re: [gentoo-user] {OT} Need a new server
References: <CAN0CFw0dkS=vCSXTPWyXDKOi=RVzKGEqXo56YiupvejfvJc1yQ@mail.gmail.com> <5233792D.7040900@orlitzky.com> <CAN0CFw0TJ+QuQOYL2L_a08vxBQoA4oEj86LAumUNvOuJDCgknw@mail.gmail.com> <3910524.4C314ckqDu@wstn> <52339798.5000409@gmail.com> <CAN0CFw1+LMVR287D7sDAZca1cQskpuzLvQQV592ZVZA50Y8mRA@mail.gmail.com> <5234494B.9010301@libertytrek.org> <CAN0CFw2+o-W5JphZ7uvVDtrwUcp3macBunUo-6=UM0ae3A=U0A@mail.gmail.com>
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On 2013-09-15 7:15 AM, Grant <emailgrant@gmail.com> wrote:
> You would prefer 4-drive RAID 10 plus a hot spare to 6-drive RAID 10?
> Isn't 6-drive RAID 10 superior in every way except for cost (1 extra
> drive)?

I would prefer X-drive RAID10 plus hot spare in *any* situation.

But, this always loses 50+% of the potential storage space available...

Again, I'd love to see some comparisons of rebuild times on RAID5/RAID6 
systems, using slow SATA drives vs fast 15K SAS drives vs fastest SSD 
drives.

The problem with RAID5/6 has always been, the larger the array, the 
longer the rebuild times - and the longer the rebuild times, the larger 
the chance of another drive failure during the rebuild.