Off-host backup wizard screen

Use this screen to select off-host backup.

Off-host backup shifts the burden of the backup process onto a separate backup agent, reducing backup impact on the client's resources. The client supplies a small amount of mapping information, but the backup agent does most of the work. It sends the client's data to the storage device.

Would you like the policy to perform off-host backups?

Click Yes for off-host backup.

What type of off-host transfer would you like the policy to use?

Select alternate client or data mover, as follows:

An alternate client

Enter the name of the alternate client. The alternate client handles the backup processing, which saves resources on the primary client. The snapshot is captured on the alternate client, not on the primary client. Compared to the other off-host methods, alternate client reduces the backup I/O burden on the primary client to the greatest extent.

Note:

On the alternate client, the following must be the same as on the primary client: the operating system and version, the NetBackup client version, and the VxVM version (if installed).

A data mover

The data mover handles the backup processing, which saves resources on the primary client:

NetBackup Media Server

A NetBackup media server reads the backup data from the primary client snapshot. It then writes the data to a storage device, using the mapping information that the client provides.

Third-Party Copy Device

(UNIX clients only): By using the Extended Copy command and by mapping information from the client, a third-party copy device reads backup data from the primary client snapshot. It then writes the data to a storage device. Many kinds of devices, such as routers and disk arrays, are designed as third-party copy devices.

Note:

If you chose the NAS (Network Attached Storage) file system on the Asset Type screen, the Network Attached Storage data mover is automatically chosen. An NDMP (NAS) host performs the backup.

Storage Unit

When you use a data mover, select the type of storage unit to use for the backup.