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Backup software is software designed to backup data for the purpose of having a second copy of an original source in case of damage to the original data source.

Contents

  • 1 Key features of backup software
    • 1.1 Volumes
    • 1.2 Data compression
    • 1.3 Remote backup
    • 1.4 Access to open files
    • 1.5 Incremental backups
    • 1.6 Schedules
  • 2 Free and open source software
    • 2.1 Generic tools
  • 3 Major commercial software vendors
  • 4 External links

Key features of backup software

There are several features of backup software that make it more effective in backing up data.

Volumes

See main article: Volume

The ability to split the backup into volumes is useful for many reasons. First, backups are often best stored off site, in case of natural disaster or fire destroying both the copy and the original. Having the data split into volumes on removable media, such as CDs, is often easier and less expensive than hard drives or servers.

Second, volumes allow backup duplication in a piecemeal fashion and allows for the checking of each segment, such as via a hash function, to ensure the components of the backup have not been damaged.

Data compression

See main article: Data compression

Since hard drive space has cost, compressing the data will reduce the size allowing for less drive space to be used to save money.

Remote backup

See main article: Remote backup

More advanced backup systems often have the ability to automatically backup data to offsite areas. Many banks, stock exchanges and other large institutions often do this to ensure data integrity.

Access to open files

Many backup solutions offer a plug-in for access to exclusive, in use, and locked files.

Incremental backups

Backup solutions generally support incremental backups in addition to full backups, so only material that is newer or changed compared to the backed up data is actually backed up, in order to dramatically increase the speed of the backup process.

Schedules

Backup schedules are usually supported to reduce maintenance of the backup tool and increase the reliability of the backups.

Free and open source software

Generic tools

  • dump
  • rsync
  • tar (file format)
  • rdiff-backup
  • DAR (Disk Archiver)
  • bacula

Major commercial software vendors

  • ABC Backup
  • Atempo Time Navigator
  • BakBone NetVault
  • Backup Exec
  • EMC Legato Networker
  • IBM Tivoli Storage Manager
  • NetBackup
  • Novosoft Handy Backup
  • PersonalBackup
  • PicoBackup
  • Roxio Toast
  • StorageQuest Reflector

External links

  • Backup tools category on Wikisolutions

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "backup software".