2003 Server offsite backup/redundancy

OK

I have a HP DL360 G4 server (2x CPU @ 3Ghz, 2GB ram, 2x72gb hdd) in RAID 0+1.

Our domain setup is 6x servers (PDC, Terminal, WSUS/Websense, File/Print, Exchange, SQL. There is a Microsoft OVS agreement for Windows, SQL, Exchange in play as well as Office.

I'd like to use the new server to act as an emergency substitute for the PDC, Terminal, File/Print, Exchange and SQL; whilst this configuration may not be supported by Microsoft for example, in the event of a disaster it will do as a work around till we get everything working properly.

I can add the services as needed e.g. DNS, DHCP and setup the server on an alternative IP range in the same subnet and make any changes necessary.

The idea being that the server is on the domain for say 24/48 hours to replicate the information then it will live offsite, being hooked up on site at regular intervals to replicate (or the replication is done down the line via VPN (ideally out of hours e.g. Sat/Sun.)

I don't need file by file replication just the listed services as the files can be restored from the backup tapes.

The server comes with a license for 2003 server std and 5 cal's and i would like to keep the above in line with this limitation so we don't incur any additional cost.

The server, SQL and exchange will ideally be setup and configured then kept offline (cold server) which i believe is permitted in the OVS again to keep the cost down however the reason for this question is to clarify so please correct me if i am wrong.

In the event of a disaster, the server would be re-comissioned wherever necessary and the MX records for e-mail re-directed and staff will acess via RRAS (how do i set this up securely) and log in to the Terminal Server aspect, use OWA etc.

Hope this makes sense, i've put the points as high as i can as i realise i'm asking a lot of information....

Thanks all
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SteveIT ManagerAsked:
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AnnOminousCommented:
The memory is low for all these services. I've done similar (excl. SQL & Exchange) on a 2GB machine and it works fine, but Exchange and SQL will need at least 4GB I would think. While replicating over a VPN is also quite workable, using the RRAS capability of Windows will have problems if the machine is also a DC. It would be better to use a security appliance with VPN support to connect the two sites.

Again, RRAS on a DC is a world of issues that will surprise and amaze. I get the impression that MS has decreed it as unsupported because they could not get it to work. I've mostly got it to work, but it's difficult the ensure that RAS connections will work consistently. If you can put another machine in from of the HP to handle the RRAS role, then both the VPN and RAS should be no problem. But having them live with the DC is almost unworkable.
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SteveIT ManagerAuthor Commented:
I can always upgrade the RAM if the solution requires it - for the cost it makes sense. I'd need to get everything working then put a case forward to justify the cost...

I'm thinking of using an old Netscreen firewall i've just found (5-GT) which with the netscreen VPN client that I have also found client licenses for this could replace RRAS and this would also give a good amount of logging and policy/protocol control.
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SteveIT ManagerAuthor Commented:
How do i go about getting the replication working across the VPN ?

What roles do i assign to the offsite server as i don't want it handling day-to-day requests as it will be switched off most of the time to start with
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SteveIT ManagerAuthor Commented:
also the updates/replication needs to be automatic i.e. when the server is on i'd need either a notification e-mail or something to confirm when replication is done so it could be switched off again.

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AnnOminousCommented:
You can put the DC in another site (AD Sites & Services) with a replication interval that is sufficiently long to reduce replication traffic over the VPN link. Note that changes you make on one site will lag by at least the replication interval, so testing this can be a pain if the interval starts too long.
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SteveIT ManagerAuthor Commented:
So if I start the replication interval small once tested it can be increased as appropriate - nice

I take it as it is the dc won't be there this won't overly affect performance ? Then if needed what roles would be needed to add for the offsite dc to take over ?

also does anyone know where I can get an Kemp windows 2k3 standard disc ?
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SteveIT ManagerAuthor Commented:
Ok not Kemp bit oem - T9 dictionary guessed wrong
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AnnOminousCommented:
For Windows 2003, see question:
http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/2003_Server/Q_25785604.html

Short answer is that Microsoft appears to be no longer supplying the media. However, the licenses are still valid so all you need to do is find the media yourself.
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SteveIT ManagerAuthor Commented:
Out of the office for the mo will sort/action on my return
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SteveIT ManagerAuthor Commented:
Thanks, points to all as all comments posted were valid and of use.

Thanks all
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