Types of System Wide Backups

• In UN*X environments, OS level or system wide backups are classified into three general categories:

  • Differential Backups
    • Backs up changes since the last full system backup
  • Incremental Backups
    • Backs up changes since the last backup
  • UN*X Backup Levels
    • Numeric backup “Levels” indicating backup depth
    • 0=Full Backup
    • 1-9=Backup that backs up incremental change since next lower level number

Notes: