Western Digital WD Arkeia R620 Installation and Configuration Guide - Manual (Page 16)

10 Arkeia Physical Appliance Installation and Configuration Guide
4. BACKUPS AND RESTORES
This section will explain how to run backup jobs and restorations.
4.1. Backup Strategies
4.1.1. Backup Vocabulary
Terms used to define a “backup” are listed below:
 Backup Job: the process by which source data are copied to disk
drives or tape drives that can be local (on the same machine as the
client data) or remote (on another machine)
 Source Data: the files (and other specialized data structures, such as a
Windows Registry) to be backed up. The specification of source data
on a client computer is a “savepack”.
 Clients: administrators install Arkeia Backup Agents on client
computers. Source data reside on client computers.
 Servers: Arkeia Backup Servers communicate with Arkeia Backup
Agents, manage the target media, and drive the Web Graphical User
Interface of the Arkeia Network Backup Suite. The Arkeia Physical
Appliance embeds an Arkeia Backup Server.
 Target Media: the media on to which the backups are written, whether
tape or disk, are the target media or storage media. The specification
of the target media is a “drivepack”.
 DiskStorage (formerly “VTL”): when the target media is disk, we
refer to the media as DiskStorage. DiskStorage can be internal (when
the disk is in the appliance) or external (when the disk is connected
through SCSI, SAS, or FC cables).
 Backup Set: the data created by a backup job. Backup Sets may span
storage units (e.g. tapes, disk drives) and may be replicated.
Arkeia Physical Appliance copies the data on clients to be backed up and writes
these data to target media whether internal disk (i.e. DiskStorage), internal tape,
or external tape (including virtual tape libraries). This guide covers only
backups to Arkeia Physical Appliance’s internal disk, though backups to internal
and external tape drives are also supported.
A backup job can be run immediately or at a scheduled time. An immediate
backup job is launched interactively and runs only once.
A scheduled backup job runs at a specified date and time in the future, whether
once or repeated at regular intervals. Once configured, backup jobs are started
by the Arkeia Physical Appliance without the need for operator intervention.
Reports can be sent automatically upon errors or upon job completion.