HP StorageWorks 6000 HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 86
Example 2: 100 GB Virtual Cartridge Replication over a 2 Mb/sec Link with 25% Bandwidth
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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 Figure 32. • 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