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Question about RAID 0

post #1 of 10
Thread Starter 
I'm building a new system over the next month or so, and RAID 0 has interested me ever since watching some videos a while back

My question is if I start with say 2 hard drives in RAID 0 can I simply add another hdd in the future, or do I have to have all the hdd's I want before I set it up to use RAID 0?

Thanks in advance for any help
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post #2 of 10
Depends on your controller.
Personally I wouldn't run more than 2 drives in RAID 0.
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post #3 of 10
Yeah you can with intel's ICHR chipset's.
I had 4x 500GB Seagate 7200.11 ST3500320AS's in Raid 0.I got some pretty good write or was it read scores in HDtach but didnt notice a difference anywhere else
    
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post #4 of 10
Once a raid 0 is made adding a further drive isn't possible, unless you have server grade raid controllers.
I have 2x seagate 1Tb drives in raid 0 (they were cheap) but I don't keep anything that I can't lose because if one disk fails the data on the other is just garbage.

Just so you know it is faster than a single but not faster than a SSD.
Edited by Doom - 1/29/11 at 5:28pm
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post #5 of 10
Thread Starter 
Can't afford SSD's right now, in the future maybe, although I may be able to afford 1 just for OS + other programs I use alot (which is the best brand to go for with SSD's? the fastest one i've seen says up to 720mb/s write 740mb/s read, but others I've looked at have been around 450mb/s read/write) [just looked again, the price of it is crazy high, that one is a deffinate no go for now]

Am I right in thinking "RAID 0+1" is RAID 0 but also with a mirror for back up? (obviously I'll need 4 drives insted of 2) if so I may go for this option, if not I'll back everything up I don't want to risk loosing on an external drive
Edited by Danny1107 - 1/29/11 at 8:50pm
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post #6 of 10
Quote:
Originally Posted by Danny1107 View Post
Can't afford SSD's right now, in the future maybe, although I may be able to afford 1 just for OS + other programs I use alot (which is the best brand to go for with SSD's? the fastest one i've seen says up to 720mb/s write 740mb/s read, but others I've looked at have been around 450mb/s read/write)

Am I right in thinking "RAID 0+1" is RAID 0 but also with a mirror for back up? (obviously I'll need 4 drives insted of 2) if so I may go for this option, if not I'll back everything up I don't want to risk loosing on an external drive
Yep, RAID 10 is a mirror set of a striped array.
Keep in mind you also lose 2 drives worth of capacity.
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post #7 of 10
Thread Starter 
Quote:
Originally Posted by beers View Post
Yep, RAID 10 is a mirror set of a striped array.
Keep in mind you also lose 2 drives worth of capacity.
I know I'd loose storage space but its always worth having a back up
would it be ok if i use say 2 WD Caviar black's for my primary drives, then 2 cheaper drives for the mirror? or do they all need to be the same drives if using a mirror

probably a dumb question but I'd rarther be 100% sure before I try
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post #8 of 10
Your array performance will be limited to the slowest drive.
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post #9 of 10
i got a nice jump in speed, seek and burst going from 2 drives to 3......since 3 drives have a bigger chance of failing i installed 7, updated it and installed all of my programs, made sure everything worked, and then copied an image of it onto a 2TB WD Green
    
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post #10 of 10
In the past I have added drives to my raid(0) but first I image the drive to a bigger media drive, then add the drive physically, then blow away and recreate a raid(0) array with the new drive and image back. Easy.
    
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