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update: Went from 250Gb AAKS HDDs in RAID 0 to 640Gb AAKS - with comparison

post #1 of 30
Thread Starter 
I am going to reinstall my setup and need some opinions.

I currently have two WD 250Gb AKS HDDs in RAID 0. Should i pick up a 3rd and build a 3 HDD RAID 0 array, or should I get two faster drives? It will cost me only $99 (trading my 250GB drives) to get two WD 640Gb AAKS HDDs for RAID 0. These 640 AAKS drives are awesome drives, so thats why I wanted to upgrade.

But which setup will yield better performance? Is there a trade off of one over the other? Please explain reasoning.

Keep in mind that I have a backup drive with all my important data, so data loss is not an isue in the even of HDD failure.


edit: Any comments on if this is even a good idea or bad would help. I was also considering just getting a larger Backup drive instead of the 500Gb SATA Maxtor drive I have now.

edit 2: Come on OCN, any opinions? I cant bump this thread yet...

------------------------------------------------------------------------------

Update:
I did a comparison between the new drives in RAID 0, and the old drives. I also want to note that the stripe size on my 250GB drives in RAID 0 whas set to 64k. With the 640Gb drives, I set the stripe size to 128k.

Here are my results with the 250Gb AKS:





Here are my results with the 640Gb AAKS:

Edited by ericeod - 6/27/08 at 10:30am
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post #2 of 30
Hmm thats a tough one. . Well this bump should help you get a answer.
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post #3 of 30
The 640AAKS, there killer drives.

I'm seriously thinking about getting one and sell my 250GB.
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post #4 of 30
agreed,plus if there new you get the new warranty,imo
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post #5 of 30
Thread Starter 
The current drives I have are less then 6 months old, so they are still pretty new. I guess I'm just trying to figure out if 2 of the superior 640Gb drives will outperform 3 250Gb AAKS drives.
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post #6 of 30
id go for, it less likely of one of them going bad i guess,i would think you would want one for a back up instead o 3 in raid0,but i never have.
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post #7 of 30
Thread Starter 
Quote:
Originally Posted by phillipjos View Post
id go for, it less likely of one of them going bad i guess,i would think you would want one for a back up instead o 3 in raid0,but i never have.
I definetly see your point. But right now I am using a 500Gb drive for all my data backup. So if I went with 2 ea 640GB HDDs, that would leave me with 1Tb of OS space (I wouldnt want to leave anything important on it), so I wouldnt really utilize all the space; so there is a lot of wasted space. There is my dilema! And would 2 640Gb devies be faster the 3 250Gb drives?

And I also have in the back of my mind that RAID isnt necessary with current drive speeds.
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post #8 of 30
you would have more cashe is all as for speed i dont think there would be that much diff,i missed you storage drive srry.8mb or 16mb's a drive?
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post #9 of 30
Thread Starter 
Quote:
Originally Posted by phillipjos View Post
you would have more cashe is all as for speed i dont think there would be that much diff,i missed you storage drive srry.8mb or 16mb's a drive?
My 250GB AAKS drives have 16Mb cache. But the 640Gb drives are based on the new 320Gb platter by WD and are proven to outperform all but the Raptor drives in their lineup.
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post #10 of 30
id get the 640AAKS
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