[118754] in North American Network Operators' Group

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Re: Redundant Data Center Architectures

daemon@ATHENA.MIT.EDU (Roland Dobbins)
Wed Oct 28 13:39:18 2009

From: Roland Dobbins <rdobbins@arbor.net>
In-Reply-To: <98F9072C6B4A354486105E1679432E130C34AC8EF4@NOVAMAIL.novadatacom.local>
Date: Thu, 29 Oct 2009 00:38:29 +0700
To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


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



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