Federico Sevilla III wrote:
>
> (warning 1: potentially off-topic message)
> (warning 2: lengthy message)
< noted >
> Initially I was thinking of going RAID 10/0+1/1+0, two pairs of RAID 0,
> doing RAID 1 on each other.
No, no, no! You want RAID 0 (striping) on *top of* RAID 1 (mirroring),
not the other way around. I've always thought it was obvious but I've
already had to correct and explain the difference to several vendors
trying to sell us their products.
> I already have four drives ready. 3Ware's RAID
> 10 seems to be pretty good, in that the processor on the controller
> handles data reads intelligently so that both the striping and the
> mirroring are taken advantage of. (For a mirrored array, it reads from
> both and not just from one drive. For a striped array of course it gets
> data from wherever it is, which is load balanced across the two striped
> disks. For a combination, it _seems_ that a "double load balancing"
> happens.).
Theoretically, yes. It depends on your applications and how you lay out
your data.
> Anyone with helpful information? URLs to recommend, perhaps?
Server/Workstation (formerly SunExpert) magazine ran a very
comprehensive Storage column a while back. Hopefully you can find their
archives online.
> As an aside, and even more potentially off-topic is a recommendation for
> some hardware. I will be assembling a box for this (case, mobo, RAM), and
> am now thinking about what to put in. Perhaps someone would be willing to
> give me some recommendations (I don't know if replies should go on the
> list for others to benefit from the suggestions, or if they should go to
> me privately to save bandwidth). [Of course the server will be running
> Linux, I will be installing Debian 2.2 subsequently upgraded to kernel
> 2.4.3.]
What's your budget? I'd suggest you take a look at Compaq and IBM's
Intel servers.
Brian
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