SSD RAID?

[Jay Vaughan]

>> Yes.  There is a 1Tb SSD-based RAID in one of the projects I'm  
>> working
>> on.  Its awesome .. so freakin' fast.  Its being used as a cache.
>
> OK, but please note the word 'redundant'. Like, RAID 5 or something.
> Does that make sense, or can an SSD drive be expected never to have  
> any
> failures?
>


Nope.  SSD's are fast and safe as hard disks, but you shouldn't trust  
them just because they're new..

> I know, it's electronics, so it will fail eventually, but if it  
> takes 20
> years to fail, that's not really an issue.
>

In our lab experiments with SSD's in the last 6 months, involving  
quite literally hundreds of different devices, we've had two failures  
already.  So its not as resilient as you might think.  Remember, I  
work in the safety-critical labs at THALES ..

> In the future, I'd like to have a small system with a low-profile SATA
> RAID controller and four SSD drives, to have a small yet awesome file
> server.


In the very near future, you could do this pretty cost effectively ..

;
--
Jay Vaughan