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One more time for me please

post #1 of 5
Thread Starter 
Hey All,

Okay, so I know this has been asked many times before, but I can't seem to get a clear answer. I have three identicle HDD (Seagate 250s 16MB). I am trying to figure out what would be better. Raid 0 with three drives or Raid 5. I've seen Raid 0 is better, Raid 5 is better, Raid 5 has overhead, Raid 5 has little overhead, On board raid controller won't do Raid 5 well and so on. I hoping you guys/gals can clear this up for me. I trust your opinions more than others. So if anyone has some clear insight on which direction i should go i would be grateful.

I plan on using my on board P5Ke raid controller. My Raid 0 results were fantastic (about a 90% increase using HD Tune) with a two drive raid 0 (the other drive had ubuntu but that's not working out for me). All the drives are the same. I generally use the comp for everyday stuff and a bit of gaming. Thanks to all!

Kurt
    
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post #2 of 5
It all boils down how important the data on those disks are. If you have a backup system in place, then I'd say go with RAID0. If you do NOT have backup system in place, go for RAID0 with two (yes 2) of the disks, and use the third as data/backup drive. I recommend against RAID5 on anything onboard, since it will result in poor write performance (read performance will be stellar on the other hand, comparible with RAID0). Creating the parity stripe with an onboard contoller, which isn't true hardware RAID, but a BIOS level software RAID solution, just takes too much time.

Also, you have to realize that even with a RAID5 solution you might have issues. Yes, you have data redundancy. But, imagine replacing the motherboard with one that has a different chipset and doesn't recognize the RAID array. Gonna be fun transferring your data from the old board to the new board. With a single data/backup drive, you won't have this problem.

Good luck.
    
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post #3 of 5
Quote:
Originally Posted by Chozart View Post
It all boils down how important the data on those disks are. If you have a backup system in place, then I'd say go with RAID0. If you do NOT have backup system in place, go for RAID0 with two (yes 2) of the disks, and use the third as data/backup drive. I recommend against RAID5 on anything onboard, since it will result in poor write performance (read performance will be stellar on the other hand, comparible with RAID0). Creating the parity stripe with an onboard contoller, which isn't true hardware RAID, but a BIOS level software RAID solution, just takes too much time.

Also, you have to realize that even with a RAID5 solution you might have issues. Yes, you have data redundancy. But, imagine replacing the motherboard with one that has a different chipset and doesn't recognize the RAID array. Gonna be fun transferring your data from the old board to the new board. With a single data/backup drive, you won't have this problem.

Good luck.
QFT. Raid 0 with two drives and a backup is what I would do as well... unless you have a fourth drive for backup already; Then I would go with the raid 0 with three drives.
om3n rev. 2.8
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om3n rev. 2.8
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by Chozart View Post
It all boils down how important the data on those disks are. If you have a backup system in place, then I'd say go with RAID0. If you do NOT have backup system in place, go for RAID0 with two (yes 2) of the disks, and use the third as data/backup drive. I recommend against RAID5 on anything onboard, since it will result in poor write performance (read performance will be stellar on the other hand, comparible with RAID0). Creating the parity stripe with an onboard contoller, which isn't true hardware RAID, but a BIOS level software RAID solution, just takes too much time.

Also, you have to realize that even with a RAID5 solution you might have issues. Yes, you have data redundancy. But, imagine replacing the motherboard with one that has a different chipset and doesn't recognize the RAID array. Gonna be fun transferring your data from the old board to the new board. With a single data/backup drive, you won't have this problem.

Good luck.

Great! I backup my data to a network drive anyway. But I thought if i could have the best of both worlds...why not right. However spending 200+ on a real raid controller when I'm already getting good results with Raid 0 on board doesn't make much sense to me. Thanks for the advise, I'll probably go with a three drive Raid 0.

Will I see a larger performance with a three drive Raid 0 over the 2 drive Raid 0? Thanks again!!

Kurt
    
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post #5 of 5
Quote:
Originally Posted by fishman78 View Post
Great! I backup my data to a network drive anyway. But I thought if i could have the best of both worlds...why not right. However spending 200+ on a real raid controller when I'm already getting good results with Raid 0 on board doesn't make much sense to me. Thanks for the advise, I'll probably go with a three drive Raid 0.

Will I see a larger performance with a three drive Raid 0 over the 2 drive Raid 0? Thanks again!!

Kurt
You'll definitely see a performance increase with three disks. However, this is more clear in benchmarks than in real world performance, unless you'll be copying large files on a routine basis (with large, I am talking in terms of GB's ). For 'regular' gaming use and such, yeah, it'll be snappier, but not by much.

Since you have the drives already, and if you don't worry too much about doing a full Windows re-install, I'd go for 3-disk RAID0.

Good luck.
    
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