Difference between CCR and SCR
This is not a checklist of differences between CCR and SCR in Exchange 2007, but a main one I thought all should be aware.
Why do you think we should not implement 2 nodes in 2 different sites with CCR and forget SCR ? Just read through…
Standby Continuous Replication (SCR) in a nutshell is a type of clustering which allows you to replicate your production databases to a standby server that can be brought online if the active site/server goes down.
What’s different in CCR then ??? CCR offers high availability and site resilience too, but its best achieved via SCR. The main reason being, its complicated to implement CCR across datacenters that have different IP subnets, as the members of the CCR cluster must be in the same subnet with W2K3 OS. I wont say its impossible, but many organizations are looking at implementing SCR in a backup datacenter and then manually initialize the SCR servers for DR pupose for the production datacenter.
So, I would call this a main notable difference between CCR and SCR.