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RAID or Single Hard Drive?

Posted on 2004-11-29
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Last Modified: 2010-04-26
I am getting ready to purchase an ASUS P5AD2 Deluxe Motherboard with RAID 0, 1 on the motherboard with support for up to 4 SATA hard drives.

What I would like to know is if I put in 4 hard drives at 7200 rpms at a raid 1 would my speed be that of using a single 10000 rpm drive.  If not what would be anyone’s suggestion that I should do here.  The big issue here is my budget.

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Question by:Richard Comito
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Lee W, MVP earned 1200 total points
ID: 12701551
Depends on how exactly you configure the RAID.  RAID 1 is mirroring, there will be little if any performance bonus if you use it.  You will also effectively lose half your disk space to the mirror.  RAID 0 is disk striping, adding the disks together as one drive, effectively.  Using RAID 0 WILL speed up performance - on par with 10K RPM drives?  not sure - I would think faster.  BUT, using RAID 0 means if one drive fails, you lose EVERYTHING.

If you use RAID 10, that's probably best.  This would be setting up two sets of RAID 0 then mirroring them (RAID 1).  If you lose any single disk, you still have your data on the mirror partition.
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