Now you need to consider your network. More than any other factor, your available network bandwidth determines the amount of data that you can realistically transfer during a backup period. The following table compares the performance of different types of networks. As you can see, network performance can significantly impede large backup operations.
|
Network Type |
Theoretical Transfer Rate |
Realistic Throughput |
Realistic Transfer Rate* |
|---|---|---|---|
|
10Base-T Ethernet |
10 mbps =1.25 MB/seconds |
40-50% |
500 KB/seconds=1.8 GB/hour |
|
100Base-T Ethernet |
100 mbps=12.5 MB/seconds |
80% |
10 MB/seconds=36 GB/hour |
|
1 Gigabit Ethernet |
1000 mbps=125 MB/seconds |
70% |
87.5 MB/seconds=315 GB/hour |
Note: If you are backing up concurrently with other operations, remember that your backup operations will not achieve the maximum, realistic transfer rate listed.
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