Dell PowerVault DL2200 - Manual (Page 11)

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Figure: Remote Office Deployment
Amount of Protected Data
One of the key factors in sizing your data protection environment using Continuous Protection is determining the
amount of data that will be sent over the network from the protected systems to the PowerVault DL Backup‐to‐Disk
Appliance. After the initial data is copied from the protected servers to the appliance, Continuous Protection Server
only copies new and changed data from the protected systems. A simple calculation for determining the amount of
data to be transmitted is:
Data change rate (GB) per hour + new data rate (GB) per hour = total data/hr
NOTE: Continuous Protection Server transmits only the changed data (blocks) except for small files. If a file is smaller
than1 MB, then the entire file will be transmitted.