Thanks for the feedback. I suspect that this will get too complicated for
e-mail very quickly...

We already use the idea of minimum and maximum cost X.400 connectors to
different servers in two physical locations (but in the same Exchange Site);
and this works well. We now want a third location, just in case both of the
first two disappear! 

As this third location is on a different companies premises, and we can not
manage and operate the servers on a day to day basis as though they are
ours, we were looking for alternate ideas for a rapid restore of the central
hub routing site capabilities. 


The present plan is to build the servers as exact replicas on their own
separate network, and restore the Exchange system from the live environment
to these servers on a regular (probably monthly) basis. These servers will
then sit there doing nothing, until the original servers disappear in a
massive puff of smoke. When that happens we link up the spare servers to the
network, and the ends of the spokes don't realise that they are different
servers.

Cheers, Chris

-----Original Message-----
From: Ed Crowley [mailto:[EMAIL PROTECTED]]
Sent: 02 June 2002 00:56
To: Exchange Discussions
Subject: RE: Stand-by servers


I think you should build these servers with new names and create new
X.400 connectors to each of the hub sites but with higher costs than the
X.400 connectors to the primary hub site.  Leave them online all the
time.  Then if the primary hub site goes away, Exchange will
automatically reroute via the secondary site with no effort on your part
whatsoever.  If you want a BDC or two at the secondary site, then build
them, but don't follow your idea of promoting and taking offline.  You
can always promote any BDC to PDC at any time if the PDC goes away; just
promote one of your BDCs to PDC if the need arises.

Ed Crowley MCSE+Internet MVP kcCC+I
Tech Consultant
hp Services
Protecting the world from PSTs and Bricked Backups!


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Chris Jordan
Sent: Thursday, May 30, 2002 6:45 AM
To: Exchange Discussions
Subject: Stand-by servers


We have a hub and spoke network of 150 Exchange 5.5 Sites. The centre
Site of the hub is just a routing Site with 2 servers (no user
mailboxes). All spoke Sites are connected to the hub Site with X.400
connectors (to one or other of the servers).

We now need a Business Continuity / Disaster Recovery environment for
the Hub. We want to build 2 spare servers in another location, and have
these servers take over the role of the routing hub in as short a time
as possible. Our plan is to build these spare servers as copies of the
live servers (same NT name, same IP address, same Exchange
configuration). They will be kept off the network until the central hub
is no more, and then the network will be switched, and these servers
will become live.

How should we build the server??
One idea is: Build a BDC in the normal domain. Then disconnect the BDC
from the network, and promote it to a PDC. Then the new (member server)
Exchange server can be built off the network and connected into the
stand-alone domain using the new PDC. The Exchange server and
configuration can then be restored, probably on a monthly basis to
maintain it in (approximate) step with the live environment.


Anyone know whether these ideas will work? Anyone got other ideas that
we should explore? At the present time we are less worried about the
spoke Sites, which is where the users reside.


Thanks, 

Chris



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