Verifying Media
A verification option allows the administrator to read NetBackup media and compare its contents to the online catalog of
information in VERITAS NetBackup.
Duplicating NetBackup Media
By using the duplicate option, an administrator can create a second copy of media containing VERITAS NetBackup images.
This is convenient for making copies for offsite storage.
Administrators have the option of duplicating a multiplexed primary image into non-multiplexed (tar-compatible) images on
secondary media, OR retain the multiplexed format of the primary image on the secondary media. The secondary media can
be an exact copy of the primary media, or contain any subset of the (multiplexed) backup images contained on the primary
multiplexed media. For example, if the primary media was created with seven multiplexed images, the secondary media may
contain from one to seven multiplexed images. The duplicates are created with a single pass of the primary tape regardless
of the number of multiplexes being copied, which often dramatically speeds up the duplication of multiplexed primary
images.
In addition, both the primary and secondary copies of a backup image can have its own unique expiration period.
Duplicating NDMP images
The NetBackup bpduplicate command can also duplicate backup images created on Network Appliance servers via NDMP. To
perform the duplication operation, the NetBackup server must share a library with the Network Appliance NDMP host, or the
Network Appliance NDMP host tapes must be transferred to a library attached to a NetBackup server. See the “Sharing Large
Robotics Libraries” section above for more information on library sharing between NetBackup servers and NDMP hosts.
Importing Media
An import option allows administrators to import VERITAS NetBackup database information from VERITAS NetBackup media
that has expired or was created on another master server. One example of using this option is to move backups or archives
to a master server at another location. The import option can also be used to regenerate the NetBackup catalogs from
regular backup media. This is normally not required because of the special processes that NetBackup provides for backing up
its databases, but it is an extra measure of insurance.
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VERITAS NetBackup Release 3.4 Technical Overview
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