Quantum DLT 4700 Guía de instalación descargar pdf (Pagina 17)

Configuring Your IP4700 Device for Use with Backup Software

Configuring Veritas NetBackup Software

The following table defines some key NetBackup concepts.

Concept Definition

Storage unit A collection of standalone tape drives or drives in a

tape library that have similar characteristics.

Robot A tape library.

Master server A server that retains the catalog or index of backed

up files. The master server controls all backups.

Media server A system with direct access to tape drives for backup.

Robot control host A system that controls the SCSI robot device. It is

usually the same as the master server.

Sessions Each session is a stream of backup data from a

particular source. Interleaving data from multiple

sessions on tape provides better use of tape drive,

server, and network bandwidth.

Client The system being backed up. A client can be an

NDMP host, a master server, a media server, or a

system on the network.

Class The overall backup policy for a particular client or

group of clients. A class includes attributes, clients,

files, and schedule.

Attributes General characteristics of the backup such as

required storage unit, type of backup, and whether or

not it is active.

Files The files to back up. Usually they are the logical disks

or mount points of file systems. They can include

directives such as when to specify all local disks or

when to add NDMP parameters.

Schedule The type of backup (full or incremental) and when to

run it.

Full backup A backup of all files that you specify in the class.

Cumulative incremental A backup of only those files that have changed since

the last full backup.

Differential incremental A backup of only those files that have changed since

the last full or incremental backup.

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Quantum DLT 4700 Guía de instalación Pagina 17