Re: 99.9 service availability

They are talking about using NetApp Snapmirror for Exchange

thanks


"Mark Arnold [MVP]" <mark@xxxxxxxx> escribió en el mensaje
news:ek68t2p0on2r6ghunbrm3h1puphic7vsa9@xxxxxxxxxx
On Thu, 15 Feb 2007 02:33:26 +0100, "Jesus Martin"
<jesus.martin@xxxxxxxxxxxxxx> wrote:

Hi All,

Customer is looking to migrate from Notes to Exchange 2007 and one of the
main goals is achieving 99.9 of email and collaboration service
availability.

They have 3 AD Sites belonging to an AD Forest/Domain, AD Sites are all
well
connected (close to LAN) they have around 1000 users/mailboxes per site.

They want to minimise the number of servers used but keeping in mind high
availability and contingency topics as a main goal

I would like to know what your opinions are and getting your feedback
because looks like Exchange 2007 is cool but to provide maximum
availability
you may need to deploy many servers.

I am thinking in:

3 Mailbox Servers using LCR or SCC, 1 Server per site

2 Hubs (DNS round robin) and CAS Servers (NLB) per site (both roles in the
2
servers)

2 Edge Servers (NLB)


This ends up with a total of 9 servers using LCR or 12 servers using SCC

Question 1: do you see any space here for implementing CCR? I do believe
they have to be configured in pairs so you would need 6 servers in a king
of
ring topology so ..
Question 2: what about deploying just 1 Hub or CAS server per site and
this
goes down? Is there any way to move all the client requests and mail flow
to
other server in other site? I don't think so but want to double check

thanks


You will only be able to run CCR if the networking team can implement
a network trunk between the site with the live server and wherever you
put the CCR replicas.

Before I go any further, what storage are you planning?


.

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