On Feb 22, 2010, at 9:46 AM, A. Krijgsman wrote:

> Today I received a commecial offer on some external USB 3.0 disk enclosure.
> Since it was new to me I googled my way to wikipedia and found that the specs 
> say
> USB 3.0 should have a 5 Gbit speeds capability.
>  
> I visited newegg and found out that a 2-port USB3.0 HBA is sold for 40$ and
>  
> I also tried to search a USB 3.0 switch/hub, however did not find any yet.

Not surprising... it is still very new.

> Since the small formfactor mobile drives could even receive power over their 
> USB cable;
> this could be a interesting addtional feature.

This was true of USB 1.0 also.  Quite a few USB 2.0 drives are powered
from USB (a good thing :-)

> Could it be an interesting solution to build a very cheap storage area 
> network?
> ( Ofcourse ZFS in the middle to manage the shares. ) Or is this wishfull 
> (e.g. bad) thinking?

It all depends on if the USB disk honors cache flush commands.
 -- richard

ZFS storage and performance consulting at http://www.RichardElling.com
ZFS training on deduplication, NexentaStor, and NAS performance
http://nexenta-atlanta.eventbrite.com (March 15-17, 2010)



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