On Friday, 23.02.2007 at 19:51 -0500, Chris Parker wrote:

> Nope this one has a 10/100 onboard.  Wish it had a dual gigabit card.
> It has 2 866 processors with 512 ram.  6 small scsi drives so I was
> figuring on raid 1.  Any recommendations?

Depends how much space you need and the disk performance you're looking
for.  You have plenty of options, with six disks, assuming your RAID
controller supports them and/or with software RAID:

1. One large RAID-5: simplest and best for more 'generic' (fileserver?)
usage; note that writes can be a little slow.  Makes the best of your
disk capacity though.  Might be worth leaving one disk unused, as a hot
spare;

2. RAID-10: three RAID-1 pairs, across which one does RAID-0 striping.
This will be *fast* (since reads could come from all six disks
simultaneously) but you lose a lot of capacity.  RAID-10 is good for
heavy IO, such as databases;

3. Mixture of RAID-1 and RAID-5, for 'system' and 'home' areas (i.e.
two-disk RAID-1 and a four-disk RAID-5);

and so on.

Of course, your choice totally depends on what you actually plan, how
much disk IO there will be, how much storage you need, how much failover
you believe is important etc.

Dave.

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