Redundant Data Center Architectures
Charles Wyble
charles at thewybles.com
Wed Oct 28 17:42:26 UTC 2009
On Oct 28, 2009, at 10:38 AM, Roland Dobbins 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.
Very true.
>
> Layer-2 between sites is evil, as well.
>
Indeed. Now VmWare actually supports layer3 for vsphere, maybe we will
start to see it go away. :)
> Layer-3-independence and active/active/etc. is where it's at in
> terms of high availability in the 21st Century. GSLB, et. al.
Yep.
That way all your environments get adequate(ish) funding. Vs
management saying "oh it's just backup/dr, we will fund it next year".
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