Setting up RAID 0 and scratch disk from blank drives?

Question

Folks,
Howdy again from NC. I've been setting up an AMD Phenom II 955 to handle PPro CS5 as well as possible, within limits. I built four of these machines for my math class, and am going to give CS5 a go on one of them before caving in and migrating my Production Premium to an i7/X58 platform. Maybe I'll get lucky and find this computer works acceptably with PPro, especially if I transcode my T2i AVCHD footage (likely Neoscene).
I put three new disks into my build yesterday and would like some pointers on setting them up, if I may ask. I have read through a number of posts on this, but don't find direct answers, unfortunately. I've never set up a RAID and want to get it right.
I have two Caviar Black drives for my RAID and a Hitachi Deskstar for my scratch disk. The Blacks are new out of the pack and the Hitachi has had zeros written to the drive. How to begin?
Anticipated issues:
* Do I need to format the drives in a certain way? I had planned on going into Disk Management and setting up a volume on each as my first move. Right now, they aren't even recognized under My Computer. Under Disk Management, all three show as unallocated.
From memory, I right click in the unallocated space and select an option for setting up the volume. Prior to this I only used straight-up drives, no RAID, and after writing zeros to a drive selected "New Simple Volume". It seems to me this is the move to make on the single scratch disk.
But how about the two RAIDed drives? We also have options to set up as "New Striped Volume" or "New Spanned Volume". If the answer is to set as as "New Striped Volume" for the RAID 0 I have planned, do I do this before or after installing the RAID software?
* My documentation for setting up the RAID on my motherboard doesn't indicate when to change my BIOS setting for the two SATA channels from IDE to RAID. Should I do this before or after running the software to set up the RAID? Do I need to go into the software setup with the two SATA channels already configured as RAID?
Right now, all SATA channels are configured as IDE.
* After getting my disks set up, I'd like to optimize my system for editing (turning off unwanted features, etc.). I've been looking all over for a link to an outside site I had bookmarked from a prior post, but lost it on re-install. Anyone recall what the favored link was? It started as a long page of instructions in simple typeface.
In the end, my disks are as follows (unless someone makes a case to use them differently):
OS/Programs - 1TB Caviar Green. Yes, I know the deal on green drives, but I needed to use this drive somewhere. I figured using it as the OS drive would be the best spot for the slowest drive. Maybe I botched this and should have used the following drive for the OS? I had transfer rates in mind and thought the Scratch drive should be faster?
Scratch - 750GB Deskstar 7K100 series. This drive was tops 18 months back when I bought it.
RAID 0 - Two 640GB Caviar Blacks (32 meg cache, twin processors). A bit older in the Black lineup, but the drive charts show them working quickly.
To ask one dumb last question, which will really show my newbieness, I use the scratch drive for page files (right? and what else?) and the RAID for holding any media to be worked upon and for encoding the final project?
I've been reading on this forum for over a month and am amazed that as I have the drives for a RAID, I can't find good links to tell me what to do. I know I am asking redundant questions here but have already spent two hours with the search engine and am only getting tangential anwers (ha! math joke).
Sorry to be asking such newbie questions all over again, but my luck with the search engine hasn't been so good of late. Maybe Bill's idea of creating a sticky section for common questions is a good idea.

Answer 1

about 75-80% of the systems we ship, ship with this config (others would be bigger arrays or no array)
1)OS
2) project drive 2 x raid 0
3) render to/export drive 2 x raid 0
4) back up (pick your poison)
while i cant speak to the older WDs (we have not used them for 3-4 yrs until now)
i can tell you with Seagate and now WD we have not seen the issue that applies to this inRaid 0
we are aware of the timeout issue this happens with controller cards and seagate or WD with large raid 5/6
simple answer use enterprise drives for raid 5/6
if you look at all the external raid resellers Sonnet etc they all use enterprise drives (mostly seagate)
so do we for large raids.
(drobo does not so buyer beware (green), we like to sell drobo without drives in it and use ours)
again BACK UP do not assume your raid 3/5/6/10/1 whatever is bullet proof, trust me its not
so even if you have a loss it should be at best nominal
something i dont think i have seen mentioned enough either
the single most common cause of drive failure (or any component failure) is Dirty Power!
dirty power can be spikes but are usually brown outs (very common in large older cities) or even low voltage coming into the home/office
this is the most common.
rather than a clean 120v you could see it as low as 105v
the other is being on a circuit with a large appliance.
ever see your lilghts flicker when the AC kicks on?
buy a good inline filter UPS. add 20% MORE wattage than your power supply
dont forget to add accessories LCDs, Audio interfaces, speakers/studio monitors etc.
Scott
ADK