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

[Ed W]

On 21/07/2013 10:13, Stan Hoeppner wrote:
> On 7/20/2013 9:20 AM, Charles Marcus wrote:
>
>> It sounds great, a real win-win as to cost *and* performance...
> Until you read the article carefully and note the network requirement:
>
> "Data is synchronously written to another host with a PCIe SSD for data
> protection and high availability via a simple, private *10GbE* network."
>
>

I have no opinion on the subject, but for others who haven't read the 
article the 10gbe referred to is to keep the server in sync with a 
backup server somewhere presumed in the same room.  As such 10gbe seems 
reasonable and inexpensive (newer supermicro can come with them built-in 
and standalone cards are reasonably inexpensive. The new Netgear 10gbe 
switch is even quite affordable)

As near as I can tell they advocate putting all the storage on the host 
machine and using network to sync off the machine (vs SAN where all the 
storage is off machine)

I don't really get where they are going with this solution though?

Ed W