Re: Raid on a MAc

[Don McAllister <donmc@xxxxxxxxxxxxxxxx>]

Thanks Jim,

Of course I want everything, best performance, reliability and
maximum available space!

I see what you mean about rsyncing two identical partitions. I use
Superduper which does "smart backups"

Thing is it really hurts to buy 1200GB pre formatted and only end up
with 600GB usable space.

Don


On 17 Jul 2006, at 15:54, Jim Noble wrote:

> Don McAllister wrote:
> > I just want the most effective scheme for the 4 x 300GB drives
I've
> > just bought!
> >
>
> Define "effective".
>
> There are only two choices with [Mac OS X's] software raid - increase
> speed (RAID 0/stripe), or improved resilience (RAID 1/mirror).
>
> RAID 1 will halve your storage capacity, and slow things down a
> bit, but
> in theory you'd be able to recover from the failure of any 1 drive.
> RAID 0 will speed things up, but if any one drive fails, you lose all
> partitions that used that drive.
>
> If it's reliability you're after, personally I'd ditch the RAID and
> set
> up a nightly rsync backups between two identical partitions.
>
> Jim
>
>



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