[Dovecot] OT: SAN vs Flash only SAN-less VM architecture for data storage

Hello all,

I am investigating options for leveraging our companies two locations, to provide fault tolerance/redundancy for our VM infrastructure.

I was looking at SAN storage options, but ran across an interesting article, and would like opinions. It sounds great, a real win-win as to cost *and* performance...

We have redundant/identical hosts at each location that can fulfill the requirements discussed...

http://www.storage-switzerland.com/Articles/Entries/2012/9/20_The_Benefits_o...

or

http://tinyurl.com/khwuspo

Stan, I'm especially interested in your take, considering your experience with high end SANs and VM storage environments...

Thanks,

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Best regards,

Charles