Example 2: 100 Gb Virtual Cartridge Replication Over A 2 Mb/Sec Link With; Example 2: 100 Gb Virtual Cartridge Replication Over A 2 Mb/Sec Link With 25% Bandwidth Utilization; Example 3: 500 Gb Virtual Cartridge Replication Over A 2 Mbit/Sec Link - HP StorageWorks 12000 - Virtual Library System EVA Gateway Manual

Figure 33 Example 2: 100 GB Virtual Cartridge Replication over a 2 Mb/sec Link with 25% Bandwidth
Utilization
.
Calculating data to replicate:
• The same data calculations as the example in
• The total data to transmit is 2.16 GB.
Results:
• Initial 100 GB backup complete in 30 minutes.
• Replication time for 2.16 GB is 14.4 hours over this link at 25% bandwidth utilization.
The time required for replication is derived from the equation:
NOTE:
To set this in context, in a high bandwidth model you would have to replicate the whole 100 GB
between sites on a 2 Mb/sec link which would take a long time. Instead, using deduplication and
replication, you only have to replicate 2.16 GB of data to achieve the same result.
Now consider a larger backup requirement where 500 GB of backup requires replicating each day.
Figure 34 Example 3: 500 GB Virtual Cartridge Replication over a 2 Mbit/sec Link
.
86 D2D Systems
Figure 32.