Backup Environment; Backup Devices - HP BB118BV - StorageWorks Data Protector Express Package User Manual

2
•
changed. During a full backup, the archive attribute and Data Protector Express catalog record for
each selected file is updated to indicate that it has been backed up during a full backup.
•
since the last full backup. The Data Protector Express catalog record for these files is updated but the
archive attribute is not reset by this backup.
•
last backup regardless of backup mode. The Data Protector Express catalog record and archive
attribute for these files is updated to reflect this backup.
•
scheduled backups. The archive attribute is not changed during this backup.
location in the event that the original location is damaged or unavailable. Restore operations can also
retrieve data to a file or folder other than the original one.
the process of automatically partitioning and formatting the hard drive, and restoring operating system
data that allows a computer or network to restart normally. Disaster recovery and general restore
operations can be combined to quickly restore both the operating system and business-critical data.

Backup environment

A complete network backup system consists of three parts: backup devices, a catalog, and a backup
management program.
Data Protector Express works with your existing computer network. A network connects file or
application servers and PC desktops together in order to allow various users to work together on projects
and with common files. Networks also allow users to share peripheral devices, such as disk drives,
printers, fax machines, and modems. Sharing devices across a network makes economic sense, since
several systems can use a single device. Backup devices, such as tape drives, hard disks, NAS appliances,
and CD or DVD recordable devices, which back up or copy files onto tape, disk, or other media, may also
be shared. For more information about using backup devices in network environments, see Strategies for
Faster Jobs on page 163.
Sharing a backup device makes operational as well as economic sense. Sharing devices lowers costs and
makes it possible to centralize backup operations across the network. Further, a single user, such as the
network administrator, can have primary responsibility for backing up all the file or application servers
and PC desktops on the network.
Sharing a backup device or tape drive across a network also poses problems.
•
sensitive or confidential data. However, unless you take protective measures, once these files are
backed up onto tape or other media, any user in physical possession of the media can gain access to
these files. Data Protector Express offers the ability to encrypt the information written to media. Data
Protector Express uses a strong key to encrypt the data on the media, which provides an excellent
protection of media outside the storage management domain. Although it is possible to physically
In full backup mode, the backup job copies all selected files in the job whether or not they have
In differential mode, the backup job copies only those selected files that have changed
In incremental mode, the backup job copies all selected files that have changed since the
In copy mode, the backup job backs up all selected files, but has no effect on any future
A restore is the process of copying data from backup media to its original location or to a new
Often defined as the ability to recover information systems quickly, disaster recovery is
Most networks have elaborate security systems that prevent access by unauthorized users to