I already have a Sony DRU500AX drive and for the RAID.. i'm not sure yet, could someone help me here? (Its not gonna be a fileserver or anything, so i was thinking along the lines of RAID 1?). As for the amount of space, i hate deleting stuff
"Wow. Appearantly you know even less about RAID than I thought. There are several different RAID setups. What you seem to be talking about is RAID 1 which is a redundant backup where the contents of the first drive are mirrored to the second drive. That way should either hard drive fail, your data is still on the other hard drive. The only real drawback is that you lose half of your storage space.
RAID 0 which is far more commonly used is striping the data across two hard drives. The advantage is that you can read and write data faster. You also don't really lose any of your storage space. The disadvantage is that should either drive fail then all data on both drives is usually completely and totally lost. (Because it's split across both drives.)
Then there are RAID 3 and 5 which are extremely rare to even find on an IDE/SATA setup. These are a neat method of storing data across several drives but with recovery information also stored, so you get the advantages of both RAID 1 and RAID 0 without either of their drawbacks (well, a little less storage space, but a lot more than just half) ... but you need more than 2 drives to do it. This is what most file servers are set up with.
And then there's a combination of RAID 0 and 1 (usually called RAID10) where you make a RAID 1 array to backup a RAID 0 array. This takes four hard drives and only has half of your storage space, but it's pretty safe and pretty fast.
The vast majority of the SATA onboard RAID only supports RAID 0. The rest pretty much only support RAID 0 and RAID 1. On rare occasion you also see support for RAID 10. Any other RAID modes generally require a card because onboard won't support them.
Oh, except for JBOD (just a bunch of disks) which seems to be supported by almost all RAID controllers, onboard or not. Of course it isn't actually RAID. It's just a bunch of disks squished together into one logical drive. I'm not even sure what the point of it is, really."
That was my first thought too. But then I thought about it some more, and really with just the purchase of a good IDE RAID card it could be in a RAID5 configuration which would give a good speed boost and only be a small reduction in total storage space compared to a RAID10 configuration.
I mean if you're going to go nuts, go all out, right?