Hard Drive question SATA raid 0+1
 

I have a question about raid 1+0.

I just bought some new computer parts that included 2 74gig raptor 16mb buffer HD's

The HD's i currently own are 2 74gig raptors but with 8mb buffers.

Will running those 4 HD in a raid 1+0 config cause any problems?

Will i need to buy 2 more of the 16mb buffer HD's or will i be fine mixing the 8mb and 16mb buffer hd's?

wrong forum:upsidedow

No one here knows anything about that type of question?

Buy 3 more Harddrives and run Raid 5. It's well worth it

So 7 hard drives in total for my office computer? I think 4 is enough if i can use the 4 i have with no problems

He already has 4, not 2. With that he could run a 222Gb RAID5 array. Although RAID5 has more capacity than a RAID0+1 or RAID1+0 array there are performance penalties, particularly if it is software based RAID. RAID5 can also only handle failure of a single drive; a 4 drive striped and mirrored array can handle a single drive failure, plus an additional failure if it's on the right "side."

BTW RAID0+1 and RAID1+0 are not the same thing (your topic says one, the text says the other...) The latter is better because it mirrors then stripes, which means less work if a drive fails.

In response to the original question, if the drive geometry is identical then you should be fine. Ideally with RAID1+0 you would have one set of 8Mb drives as the first mirrored pair, then the other 16Mb set as the second. If your controller doesn't visualise where a physical drive appears in an array then I'm guessing that plugging in the drives in 8Mb, 8Mb, 16Mb, 16Mb order should work. This is with RAID1+0, with RAID0+1 they would need to be alternating.

One important thing I forgot to mention: COOLING! If your case doesn't have a fan dedicated to the HDs then get one that does. I have a Coolermaster 810 Stacker with two HD caddies; each holds 4 HDs and has a dedicated fan. I run a 600Gb RAID1+0 and 640Gb RAID0 array (6 HDs in total)

Thanks for the reply!

The case im using is an Antec 900
http://www.antec.com/us/productDetai...?ProdID=15900#

It has 2 big fans in the front, 1 for each bay which holds 3 HD's each. So im placing 2 HD's in each bay.

Now about the raid. I have Abit AB9 Pro
It has a ICH8R 6x SATA (RAID 0,1,5,10) controller

I wrote the title of the thread incorrectly.

That's an Intel Matrix software based controller, right? Definitely avoid RAID5 then, go for RAID10

i learnd something new at gfy