Re: [zfs-discuss] Direct I/O ability with zfs?

[Tim Spriggs]

Nicolas Williams wrote:
> On Thu, Oct 04, 2007 at 10:26:24PM -0700, Jonathan Loran wrote:
>   
>> I can envision a highly optimized, pipelined system, where writes and 
>> reads pass through checksum, compression, encryption ASICs, that also 
>> locate data properly on disk.  ...
>>     
>
> I've argued before that RAID-Z could be implemented in hardware.  But I
> think that it's all about economics.  Software is easier to develop and
> patch than hardware, so if we can put together systems with enough
> memory, general purpose CPU horsepower, and memory and I/O bandwidth,
> all cheaply enough, then that will be better than developing special
> purpose hardware for ZFS.  Thumper is an example of such a system.
>
> Eventually we may find trends in system design once again favoring
> pushing special tasks to the edge.  When that happens I'm sure we'll go
> there.  But right now the trend is to put crypto co-processors and NICs
> on the same die as the CPU.
>
> Nico
>   
Time for on board FPGAs!
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