QNAP Disk On-line Server NAS-2100 Manual de usuario descargar pdf (Pagina 4)

Rsync in practice

Consider the topology illustrated in Figure A. In this scenario, a local ReadyNAS can maintain a

copy of all the data generated at one or more remote locations. For example, the local device can

reside at an off-site location, such as a home office or other facility, and back up the data stored

at a remote business site. Rsync can accomplish this goal in two different ways:

9 Each remote device can “push” its data to the local device.

9 The local device can “pull” data from each remote device.

If you choose the “push” solution, you need to create a backup job at each remote site. However,

this can add administrative overhead to your organization because you need to maintain separate

backup jobs residing at potentially different locations. Choosing the “pull” solution is more

efficient because, although you still need to create a backup job for each remote site, all the

backup jobs are maintained on the local device.

In general, you can think of each location as a separate network, either internal or external to

your organization. For the purpose of this guide, the ReadyNAS device hosting the backup jobs

is the local device and the ReadyNAS devices you want to back up via Rsync are the remote

devices.

Figure A: A ReadyNAS device can be either a local or a remote device.

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QNAP Disk On-line Server NAS-2100 Manual de usuario Pagina 4