You don't need the same hardware. A PC with enough disk and memory
(512MB should be enough for DR testing) will work. You could use virtual
servers as well.

Starting at windows 2000, restore programs are smart enough to not
overwrite the hardware configuration part of the registry. There are a
couple of caveats:

1. The boot.ini file *is* restored. This will need to be tweaked if the
partition layout is different on the backed up system and the target
system.

2. It only works correctly if windows is installed to the same drive and
directory. This can bite you if you upgrade a server from 2000 to 2003 -
remember to install win2k3 to C:\WINNT on the recovery server.

3. The HAL (hardware abstraction layer) must be "close" between the
backed up server and the recovery server. 

4. If the server blue-screens when you boot it after recovery, boot to
the OS install CDROM and select the second repair option that comes up.

5. You will probably see some "phantom" network connections after the
restore. There is a KB article on removing these.

There is a KB article on restoring to dissimilar hardware.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Larry
Wahlers
Sent: Thursday, May 19, 2005 9:12 AM
To: Exchange Discussions
Subject: Proving that backups work

Please forgive this question, but my boss wants me to actually prove
that we can do a bare metal restore of Exchange. His exact words were:
"be sure each of these mail servers will be able to be totally rebuilt
if we encounter a problem that would require a Windows, Exchange and
Mail DB rebuild." We have 2 Exchange 5.5 servers on Win2K and one
Exchange 2003 SP1 server. We are going to apply Windows Server 2003 SP1
to the E2K3 server this weekend, and catch the two Exchange 5.5 servers
up to latest patch level as well. I've already applied all that to my
test Exchange 5.5 server and test Exchange 2003 server (minus the E2K3
SMTP patch, which I'm not going to apply), and verified that email
works, but I'm sure he wants us to be able to prove that we can restore
if we have a worst case scenario. 

We use Veritas Backup Exec 9 to do the full system backups and then the
full Exchange backups every night (IS (for Exchange 5.5), Storage Group,
System State, SRS (for E2K3)).

I remember in class that in order to really prove backups work, you have
to actually do a bare metal restore. To me, that means get identical (or
nearly identical) hardware, put a minimum system on it, restore the
server from the Backup Exec full system backup, then restore Exchange
from the Backup Exec full Exchange backup.

Am I missing something? Is there a more efficient way?

If you've read this far, thanks for any help you can give.

--
Larry Wahlers
Concordia Technologies
The Lutheran Church - Missouri Synod 

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