Re: Redundant Data Center Architectures

[Brandon Galbraith <brandon.galbraith () gmail com>]

> > Layer-3-independence and active/active/etc. is where it's at in terms of
high availability in the 21st Century.  GSLB, et. al.

Somewhere on video.google.com is a Google I/O talk explaining the hell that
is active/active redundancy and how hard it is to achieve at layers 4-7. I
don't argue that it's the proper method for Layer 3 though.

-brandon

On Wed, Oct 28, 2009 at 12:38 PM, Roland Dobbins <rdobbins () arbor net> wrote:

> On Oct 28, 2009, at 8:26 PM, Stefan Fouant wrote:
>
>  I'm wondering what are the growing trends in connecting Data Centers for
> > redundancy in DR/COOP environments.
>
> 'DR' is an obsolete 40-year-old mainframe concept; it never works, as
> funding/testing/scaling of the 'backup' systems is never adequate and/or
> allowed.
>
> Layer-2 between sites is evil, as well.
>
> Layer-3-independence and active/active/etc. is where it's at in terms of
> high availability in the 21st Century.  GSLB, et. al.
>
> -----------------------------------------------------------------------
> Roland Dobbins <rdobbins () arbor net> // <http://www.arbornetworks.com>
>
> Sorry, sometimes I mistake your existential crises for technical
> insights.
>
>                        -- xkcd #625


-- 
Brandon Galbraith
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