Tom's Hardware > Forum > Storage > NAS/RAID & Technologies > [Solved] Can you put usb flash drives in raid?
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Best answer from sminlal.

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nonxcarbonx   08-12-2009 at 02:25:49 AM

Sounds cheaper than an ssd.

------------------------------ Core i7 920 @3.8ghz|Foxconn Renaissance Motherboard|2 GTX 260s in SLI|750 Watt PSU|6 GB RAM|64 GB Kingston SSDNow V-Series|Windows 7
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Best answer from sminlal
You'd need a RAID controller that supports USB drives - that may be a tricky thing to find. Alternatively you could go for pure software RAID.

But USB flash drive transfer rates are abysmal, you'd have to put quite a few of them into a RAID set just to equal the transfer rate of a mechanical drive, let alone an SSD. Random I/O performance would be better, though.
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505090   08-12-2009 at 03:16:23 AM

Should be able to implement a software solution with a little effort

write speeds would be horrible though

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Bronze Storage badge sminlal   08-13-2009 at 03:58:10 AM
Best answer

You'd need a RAID controller that supports USB drives - that may be a tricky thing to find. Alternatively you could go for pure software RAID.

But USB flash drive transfer rates are abysmal, you'd have to put quite a few of them into a RAID set just to equal the transfer rate of a mechanical drive, let alone an SSD. Random I/O performance would be better, though.

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randomizer   08-13-2009 at 11:38:04 AM

It would make a nice Readyboost drive but you can forget having good sequential read/writes.

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jsc   08-13-2009 at 12:26:14 PM

Dec08 PCPlus (British magazine) had an article about how to do that. But because of the way that Windows treats USB drives, they had to do it in Linux. They also described how to make a cheap (and slow :)) SSD from a CompactFlash card.

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