I'm currently working on a project where we will be migrating our ERP system to a new set of servers in the coming months, and I'm trying to come up with a plan for disaster recovery.
The high level requirements are as follows.
1. SQL Server 2008 R2 (Virtual)
2. Application Server (Virtual)
3. Load Balanced Terminal Servers (Physical)
4. Off-site hyperV host connected to the main Datacenter via 6mbps MPLS.
I'm not too concerned about the terminal servers, but trying to come up with some ideas to protect the SQL and APplication server.
I have setup a test environment with two Server 2008 machines running HyperV for testing.
1. I tested replicating the VHD files between the servers using DPM 2010. While this works, the recovery process is kind of complicated.
2. Currently testing a Hyper-V cluster using SteelEye Datakeeper to replicate the VM's between servers. So far the recovery seems to be far easier than DPM.
3. Next Step is to evaluate Double Take Availability.
Anybody have any words of wisdom or pitfalls I should watch out for?