[AusNOG] Back of envelope II

[David Hughes]

On 06/03/2009, at 12:34 PM, Skeeve Stevens wrote:

> The ONLY solid way that I know to do good server redundancy is with  
> Virtual Platforms that support SAN, Fibre Channel/iSCSI with diverse  
> heads.

And then your SAN storage goes flop and things look bad all over.  And  
anyone familiar with the QA of IBM storage controller firmware will  
know the feeling.

So, add into that a SAN virtualisation layer, like IBM SVC so that you  
have the same data on multiple SANs

And then add in a second datacentre for "real" redundancy.  Naturally,  
you''ll need layer 2 ethernet and fibre channel between those sites.

Then clone yourself so multiple people have exactly the same skill  
set  ;-)


I guess everyone has to pick their point in the "price vs return" curve.


David
...