[Novalug] NAS Box using software RAID
jhart at kevla.org
Mon Jul 12 12:11:58 EDT 2010
RAID 1 sounds like what I want.
> On Mon, Jul 12, 2010 at 01:29:53PM +0000, Jeff Stoner wrote:
>> On Mon, 12 Jul 2010, Jay Hart wrote:
>> > I'm standing up a new NAS Box (using FreeNAS) using matching 1TB Drives
>> > of two drives). System disk will be a USB flash disk.
>> > 1. What is the best combo to use for these two drives?
>> Mirroring for 1 TB of space, LVM for 2 TB of space. I suppose you could do
>> RAID 10 if you half each drive but I've not tried that.
> RAID 10 (RAID 1+0 I presume) for two drives?
>> > 4. What would be the best plan to use for a 2 drive RAID system?
>> You only have 2 options (in my mind) - striping and mirroring. As I said,
>> you might be able to do RAID 10 with some partitioning but it's not
>> something I've tested.
> RAID 10 with partitions on two drives is possible (in Linux at least) but
> would be very sub-optimal. You'll lose both
> the write speed and reliability advantages RAID 10 can offer.
>> RAID 5 with only 2 physical drives? Where are you going to write your
>> parity bits?
> Three devices are required for RAID 5.
> -A. Dave
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