RE: RES: Re: Mirror Exchange

  • From: "Eric Lanyon" <elanyon@xxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Wed, 06 Mar 2002 10:51:48 -0800

I still say you need to Cluster.

This is a sample of the website link...its a bit long, sorry.  I believe the 
correct term for what you want (so the boss man says) is called Active Active 
Clustering where there are 2 servers both running Exchange and both are serving 
clients, taking advantage of both systems.  So, if Server 1 goes down, Server 2 
handles the load as the clients are connecting to a virtual server that is made 
up of both Exchange servers.  Having only 1 server active seems silly to 
me...why not utilize all the resources available and keep users happy with 
speedy connections?

Exchange 2000 Server Clusters on Windows 2000 Advanced Server
The following sections are the recommended cluster configurations for Windows 
2000 Advanced Server. You can install either two-node active/passive or two 
node active/active Exchange 2000 Server clusters on Windows 2000 Advanced 

A dedicated secondary node in your cluster―an active/passive cluster 
configuration―provides the maximum availability and performance of any Exchange 
2000 Server cluster configuration. However, it requires an investment in 
hardware that is not in use most of the time. 

In an active/passive configuration, the primary node of the Exchange 2000 
Server cluster supports all client computers while its secondary node is idle. 
The secondary node is a dedicated server that is ready to be used whenever a 
failover occurs on the primary node. If the primary node fails, the secondary 
node picks up all operations and continues to service client computers at a 
rate of performance that is close or equal to that of the primary node. This is 
the primary benefit of the active/passive cluster configuration―the performance 
of your Exchange 2000 Server will be minimally affected by a failover. 

If you deploy an active/passive Exchange 2000 Server cluster, it is recommended 
that you have no more than one Exchange Virtual Server in the cluster. 
Active/passive clusters over active/active clusters are also recommended. 
Active/passive clusters are preferred because one node is dedicated to taking 
over a failed Exchange Virtual Server should the other node fail. 

To create a two-node active/passive Exchange 2000 Server cluster, see the "Set 
Up an Exchange 2000 Server Cluster" procedure in this document. 

In an active/active Exchange 2000 Server cluster configuration, each node owns 
an Exchange Virtual Server. 

If you deploy an active/active Exchange 2000 Server cluster, no more than two 
Exchange Virtual Servers should be in the cluster. Active/passive cluster 
configuration is recommended over active/active configuration. When a node in 
an active/active cluster fails, the other node takes over the failed Exchange 
Virtual Server, reducing the performance of the active node. 

Note Make sure you plan for storage group limitations when creating 
active/active Exchange 2000 Server clusters. See the "Storage Group 
Limitations" section of this document for more information. 

To create a two-node, active/active Exchange 2000 server cluster, see the "Set 
Up an Exchange 2000 Server Cluster" procedure in this document. 

>>> fred.caicedo@xxxxxx 03/06/02 10:33AM >>> 

What are you trying to solve? Mean time to recovery?  Disaster recovery?
The approach is different based on the needs.
How do you protect against Database corruption?


-----Original Message-----
From: Alex Decarli [mailto:decarli@xxxxxxxxxxxxx] 
Sent: Wednesday, March 06, 2002 12:27 PM
To: [ExchangeList]
Subject: [exchangelist] RES: Re: Mirror Exchange 

I don't want cluster.
I want a secundary e2k like one domain controller.
There is two domain controllers. When one is down , exist another.
I want the same with exchange

Alex Decarli

-----Original Message-----
From: Eric Lanyon [mailto:elanyon@xxxxxxx] 
Sent: Wednesday, March 06, 2002 7:04 PM
To: [ExchangeList]
Subject: [exchangelist] Re: Mirror Exchange 

Wouldn't that be clustering?  Never done it, but it is possible from
what I hear.

>>> decarli@xxxxxxxxxxxxx 03/06/02 08:49AM >>> 

I have installed Exchange 2000 with  SP2 standard.
Now , I want to create a secundary exchange 2000 "Mirror".
How can i do ?


Alex Decarli

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