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It
very much depends on how mission critical your app is. If you are running an
e-commerce site and an hour of downtime is going to cost you $70,000 then yes
having two of everything makes sense. If you are going to lose $500 then
probably not.
On a
side note you don't necessarily need Enterprise or need to 'cluster' the boxes.
You could have x number of app servers running Standard with some kind
of load balancer out the front. The LB would split the incoming traffic amongst
the available boxes. If a single box fails then it gets taken out of the loop
and traffic is directed to the remaining boxes. However, in this case tho you
would lose any session info on the box that goes down.
On the
other point. You could have a front end web server serving static content
(images, static html pages, etc) and only forwarding .cfm requests back to the
app server. Having said that we combine the Web & CF servers on the
same box and have a separate box running the database
server.
Barry
But what about if one of those boxes fails
? This leads me to think you need 2 CF boxes running enterprise with
cluster cats. but then if you do that you might as well have 2 of everything ?
(sounds more like an Ark than a server farm!)
And assuming your application is entirely written
in CF, whats the point of having a separate web server ? all the requests will
be forwarded on to CF processing anyways ?
Pat
Maybe there is a bit of latency to deal with when the SQL server is
on another machine, but the benefits outweigh those milliseconds
lost.
The 4 main benefits you gain from keeping it all separate is
1.
security
2. stability
3.
scalability
4.
upgradeability
But to answer your question, nope I don't know of any white papers,
but any decent networking guy should know this, keep it all
separate
-
Web Servers
-
SQL Servers
-
Application Servers
-
Mail Servers
I
think if you have an architecture as following
Box1 ColdFusion
Box2 SQL Server
Box3 Web Server
and a 100MBps network you won't notice any latency
and possibly gain speed.
Taco
Fleur
Tell me and I will
forget
Show me and I will remember
Teach me and I will learn
Anyone know
about an official paper re best practice server architecture configuration
of CFMX, db servers, etc.
Basically
looking for something that sais the database server should reside on a
separate box to the CF app server. I'm arguing against someone who insists
network latency in accessing data has a bigger impact than the sheer
load oracle running on the same box as a couple of instances of cfmx
app servers.
Thanks
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