local continuous replication exchange question

[jenniferjohnson]

studying for an old cert. what exactly was the point of lcr vs ccr in older exchange server builds?

 

[Bryleeeaton]

In Exchange 2007, LCR (Local Continuous Replication) provided single-server redundancy by replicating data to a separate disk on the same machine. CCR (Cluster Continuous Replication) used failover clustering to replicate data between two nodes, protecting against entire server or hardware failures. Both paved the way for modern Database Availability Groups.

 

[mason]

LCR was basically local redundancy on the same server, like a safety copy on another disk, while CCR replicated to another server for real failover. I always saw LCR as “better than nothing” and CCR as the one you actually trusted in a crash

 

[Horbay]

LCR was basically local redundancy on the same server, like a safety copy on another disk, while CCR replicated to another server for real failover. I always saw LCR as “better than nothing” and CCR as the one you actually trusted in a crash

that makes a lot of sense thanks