> > refinements could theoretically get us down one more (~100
> > microsecond).
>
> They've already done already better than that. Here's a solid state
> drive with a claimed 20 microsecond access time:
>
> http://www.curtisssd.com/products/drives/hyperxclr
Right. That looks to be RAM based, which means $$$$ compared to NAND,
so that's not going to breakout of a server niche. I imagine the
latency is the device latency not the system latency. By the time you
send the request through the fibrechannel stack and get the block back
it's gonna be much closer to 100 microseconds. It's that OS visible
latency that you've got to design to.
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