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Re: [PLUG] Network based RAM
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- From: "K.S. Bhaskar" <bhaskar@bhaskars.com>
- To: "Philadelphia Linux User's Group Discussion List" <plug@lists.phillylinux.org>
- Subject: Re: [PLUG] Network based RAM
- Date: Tue, 4 Sep 2007 23:33:18 -0400
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On 9/4/07, Stephen Gran <steve@lobefin.net> wrote:
> On Tue, Sep 04, 2007 at 01:51:59PM -0400, Brent Saner said:
> > what would be nice in the future is to see consumer-level mobos with
> > hotpluggable RAM, maybe even externally. that'd solve this entire
> > problem.
> >
> > why stop there? i think if every single thing could be hotswappable
> > (i give that technology about another 5-7 years to show up), it'd be
> > awesome. oh, bad processor? swap a new one in!
> >
> > it'd be mind-boggling as to how that'd WORK, though...
>
> This has been available for decades on "server" hardware. Mainframes
> allowed you to swap memory or cpus without taking the machine down, and
> even some relatively recent sun machines have pretty much everything hot
> swappable.
[KSB] IBM zSeries hardware has for years supported hardware called a
Parallel Sysplex. Basically some v-e-r-y e-x-p-e-n-s-i-v-e RAM (along
with some goodies like an accurate clock) that provides shared memory
between systems that can be physically - perhaps even geographically
separated. IBM haven't been able to break the speed of light yet, so
a Sysplex can't operate between systems that are very far apart.
Beyond my price range for a Christmas stocking stuffer, no matter how
neat it is to a geek.
-- Bhaskar
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