Re: Expand VM

[Herman Oosthuysen <Herman@WirelessNetworksInc.com>]

The trouble is that you will spend so much money on the power supply, 
that the product won't make economic sense.  It would be better to just 
use a general purpose PC mother board, PSU and a UPS, since then, you 
get tremendous economy of scale.

John Bradford wrote:
>>>I've seen loads of solid state devices based on flash memory, but few
>>>that are based on battery backed DRAM :-(.
> 
> 
>>There is a good reason for that: Power consumption.
>>
>>A large SDRAM disk would require refresh logic etc.  So you will end up 
>>with something closely resembling bad notebook PC.
> 
> 
> I suppose it makes sense for portable devices, but would it really be
> that bad for desktop/server use?  I was only thinking of about a 24
> hour battery backup time - to keep the contents overnight, for
> example.
> 
> John.
>