Network Bandwidth Considerations

Network Bandwidth Considerations

When implementing a backup solution that backs up data to a backup server over the network, an important factor is network bandwidth. The reason for this is that all the data must go over the network. This becomes even more important when different machines are trying to back up to one server at the same time, since the amount of data increases. That is why network bandwidth will be one of the factors when deciding how many machines will be backed up to one backup server, and which backup window will be needed.

To calculate the time needed for a backup, the following points must be considered:

This brings us to the following formulas:

Note: When calculating backup throughput, factors other than network speed will matter. For example, processing on a backup server and tape mounting will also play an important factor. See performance reports from specific products to get an idea of application capabilities.

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