USB 3.0 makes USB RAID Possible, Tempting

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colinjm0517

 You mean 500 MB/s right? 500Mbit/s is just barely faster than USB 2.0

Windows 7 is the King of all OSes

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mrguitarmann

I have a 3 Western Digital USB drives (1TB each) set up in RAID 5 mode in Linux. It took me no time to set up at all and speeds are way over what I can pull out from a SATA II drive in any OS. Furthermore Linux doesn't mind which port the drive is plugged into so will always correctly RAID if I have to move the machine for any reason.

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Taz0

Yeah, that's probably what he meant. Since USB3's speed is 4.8Gbps (x10 faster than USB2's 480 Mbps), and since 4.8Gbps / 8 = 600 MB/s. If you take away 100 MB/s for overhead (USB usually has a nasty overhead), you're left with about 500 MB/s.

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nekollx

 think about it this way.

 

If you RAIDed a u2 its would have AT BEST 480MB read times, across all drives,

U3 is 5GB cap and the current controler for the hard drive would be 500MB per drives (with a max head of 5GB)

 

so instead of 3 drives sharing 480MB you have 3 drives EACH using 500MB and SHARING 5GB cap

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Coming soon to Lulu.com --Tokusatsu Heroes--
Five teenagers, one alien ghost, a robot, and the fate of the world.

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baker269

 "think about it this way.

 

If you RAIDed a u2 its would have AT BEST 480MB read times, across all drives,

U3 is 5GB cap and the current controler for the hard drive would be 500MB per drives (with a max head of 5GB)

 

so instead of 3 drives sharing 480MB you have 3 drives EACH using 500MB and SHARING 5GB cap"

 

Everything you typed is incorrect. Back to school with ya.

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nekollx

 last i checked thats howRAID worked.

 

if you have 3 SSDs with 250MBS read raided their each one is reading 1/3 of the file at 250 MBS with the only cap being what SATA, ESATA, USB, SCSI  etc has for the pipe line.

------------------------------
Coming soon to Lulu.com --Tokusatsu Heroes--
Five teenagers, one alien ghost, a robot, and the fate of the world.

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jcollins

That's how it works when the RAID is on your main system, not necessarily when it's on a cable to a RAID box...

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nekollx

 But that's the idea behind this going RAID. 

 Concept and iplmentation are 2 different things but you can't just make a blanket "that's not how it works" when the article talks about "this is what we are hoping will work"

------------------------------
Coming soon to Lulu.com --Tokusatsu Heroes--
Five teenagers, one alien ghost, a robot, and the fate of the world.

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colinjm0517

sorry, clicked on the comment button by accident

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