Re: expanding past 1 TB on amd64

On 7/17/13 11:26 AM, Freddie Cash wrote:
> On Wed, Jul 17, 2013 at 7:50 AM, Bob Bishop <rb@gid.co.uk
> <mailto:rb@gid.co.uk>> wrote:
>
>     Hi,
>
>     On 17 Jul 2013, at 15:17, Kurt Lidl wrote:
>
>      >> On 7/16/2013 2:12 PM, Alan Cox wrote:
>      >>> ... The Haswell line of CPUs is widely reported to
>      >>>> support DIMMs twice as large, and it's due in September.  That
>     would
>      >>>> make the systems of late 2013 hold up to 1536GB of memory.
>      >>
>      >> I'd point you at stuff like the Supermicro X8BQ6 series of
>     mainboards.
>      >> QP E5-8800 systems with 1 TB of memory have been around since 2011.
>      >
>      > That might have been true, but I did check SuperMicro's
>      > "motherboard matrix" of available products before posting.
>      >
>      > The largest listed memory configuration on
>      > any of their current products is 768GB.
>      >
>      >
>     http://www.supermicro.com/products/motherboard/matrix/?cpuclass=all&sorton=memory
>      >
>      > -Kurt
>
>     http://www.supermicro.com/products/motherboard/Xeon7000
>
>     Looks like their matrix is not up-to-date.
>
>
> There's also several AMD motherboards that support 1 TB of RAM:
> http://www.supermicro.com/products/nfo/AMD_G34.cfm?pg=MOBO
>
> You know, the CPUs that started the 64-bit x86 support ... :)

Searching a bit harder, it looks like Intel is shipping a quad-socket
board that supports "1500GB" of memory.

http://ark.intel.com/products/61033

So, 1500GB is now, and the next doubling will probably be "soon",
assuming Intel revs their quad processor boards for Haswell, and that
support for 64GB DIMMs is there.

I'm not trying to find the biggest motherboard out there, I'm just
trying to say that Chris' patch for support up to 16TB isn't too
farfetched.  And within the next "5 year" window, it's entirely likely
that > 4TB systems will be available.

-Kurt

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