Does RAID 0 have to be configured evenly, like 2 drives, 4 drives? Or could I configure a RAID 0 array with 3 identical drives?
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Possible to run 3 drives in RAID 0?
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johnsrg
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You can do RAID 0 with 2-4 drives, so ya, you could do 3 drives in a RAID 0 array.
Actually you can have RAID0 with as many drives as you want... as long as it is more than 1 and you have a controller for them all. However, RAID0's MTBF is lowered with the addition of each HD. Don't forget failure of one drive means total loss of data in all drives with RAID0.
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The drives don't have to be identical sizes, either. It will just make the smallest size drive as the size of all the drives in the array.
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And the performance all the HDs will be limited by the worst HD.
Due to performance and size hit, it is recommended running identical drivers based on economics.
Originally Posted by stargate125645  The drives don't have to be identical sizes, either. It will just make the smallest size drive as the size of all the drives in the array. |
Due to performance and size hit, it is recommended running identical drivers based on economics.
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I'm building a system for a co-worker and he wants to save money and I thought of trying 3 WD160AAJS ($54.00 at Newegg) in a RAID 0 array rather than two 74gig Raptors. I'm thinking the 3 drives will be as fast if not faster than the two Raptors and the savings is substantial.
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Yes you can. For optimal performance, you should get 3 identical HDDs.
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Been reviewing Tom's Hardware charts and the WD1600AAJS is a zippy little drive for only $54.00 bucks! So three or 4 in Raid 0 should be smokin fast.
http://www23.tomshardware.com/storag...2=675&chart=33
http://www23.tomshardware.com/storag...2=675&chart=33
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Diminishing returns though...
Add one HD, get a theortical 100% I/O gain but double risk.
Add another HD, get a theortical 50% further gain but triple risk.
Add another HD, get a theortical 25% further gain but quadruple risk.
Add another HD, get a theortical 20% further gain... ect
Originally Posted by mcogan10 more drives = more performance |
Add one HD, get a theortical 100% I/O gain but double risk.
Add another HD, get a theortical 50% further gain but triple risk.
Add another HD, get a theortical 25% further gain but quadruple risk.
Add another HD, get a theortical 20% further gain... ect
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Not good enough for important documents. You may want to keep your docs on the RAID and run some type of backup to the seperate HD now. Hard drives will fail so make sure the only copy of your important stuff is on only one HD.
Originally Posted by jacobdrw thanks, but it is cool i put my documents on a seperate hd |
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Just some Info that may help at some point : http://en.wikipedia.org/wiki/RAID
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the transfer speed will roughly be double depending on your raid controller-cheaper & onboard controllers will have less data throughput while higher end cards will bring you closer to "double" performance of a single drive.
It's definetly nice and speedy, even with a cheaper controller you get some pretty decent speed on your rig and loading times.
--remember hard drives are the botteneck in today's computers.
**hey Duckie i didn't say anything too ******ed did i?
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Originally Posted by MuniDude So are you saying if I buy two 7500RPM drives and put them into RAID 0 it will mean the speed of the Raid setup is double or 15,000? |
the transfer speed will roughly be double depending on your raid controller-cheaper & onboard controllers will have less data throughput while higher end cards will bring you closer to "double" performance of a single drive.
It's definetly nice and speedy, even with a cheaper controller you get some pretty decent speed on your rig and loading times.
--remember hard drives are the botteneck in today's computers.
**hey Duckie i didn't say anything too ******ed did i?
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No...
First, it is 7200RPMs.
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Second, you don't add the HD speeds... that would be like calling a 2.6GHz quad-core a 10.4GHz CPU....
What happens is if you have two 100MB/s HD... in RAID0, they will run at 200MB/s (in a perfect world). In the real-world, you should get 160-200MB/s. If you added another 100MB/s HD, you would get 200-300MB/s
Originally Posted by MuniDude So are you saying if I buy two 7500RPM drives and put them into RAID 0 it will mean the speed of the Raid setup is double or 15,000? |
First, it is 7200RPMs.
Second, you don't add the HD speeds... that would be like calling a 2.6GHz quad-core a 10.4GHz CPU....
What happens is if you have two 100MB/s HD... in RAID0, they will run at 200MB/s (in a perfect world). In the real-world, you should get 160-200MB/s. If you added another 100MB/s HD, you would get 200-300MB/s
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