| Full Backup | Incremental Backup | Mirror Backup | Differential Backup | |
|---|---|---|---|---|
| Definition | GBM backs up all the selected files each time the backup job is run. New files will also be appended to the selection. | GBM includes all files that have changed since the last backup run (regardless of whether it is full or incremental). Deleted files will not be removed from the backup set. | GBM includes all files that have changed since the last full or mirror backup. Missing files are also deleted from the backup set. The resulting backup archive consists of either one compressed file or one folder. | GBM includes all files changed or added since the last full backup. Each backup run will create a new file/folder on the storage media containing new and changed files since the last full backup. |
| Tools For File Selection | All Selected Files | • Last modified date and time stamp (default) • Archive Bit • CRC | • Last modified date and time stamp (default) • Archive Bit • CRC | • Last modified date and time stamp (default) • Archive Bit • CRC |
| Time Consumption; 1 (Lowest) - 4 (Highest) | 4 | 2 | 1 | 3 |
| Space Consumption; 1 (Lowest) - 4 (Highest) | 4 | 2 | 1 | 3 |
| Rollback | Not Available | Can be enabled or disabled | Disabled (one catalog entry will be recorded) | Forced |
| Purging | Enabled | Enabled only when Rollback is enabled. Purging will delete a complete backup set, including a normal backup and all its subsequent increments | Disabled | Works in the following two methods: • Delete a complete backup set, including a normal backup and all its subsequent differential backups. • Delete intermediate differential backups, as long as the most recent normal backup run and the last differential are intact |
| Data & Storage Media Limitations | None | If Rollback is disabled then the incremental backup can not be performed onto non-rewritable media, or FTP or Tape is disabled. Backup can not be spanned over multiple disk volumes. | Mirror Backup is not supported when data after compression exceeds 2GB in size, Backup can not be performed onto non-rewritable media, or FTP or Tape is disabled. Backup can not be spanned over multiple disk volumes. | None |
| Rotating Backups | Not Available | Supported: (Setting GBM to perform a number of increments then return to normal backup). | Not Available | Supported: (Setting GBM to perform a number of increments then return to normal backup). |
| Supported Media | All | All if rollback is enabled If rollback is disabled: • CD-RW & DVD+-RW,(using packet writing only – one disk only) • Local/LAN Locations, • Removable Media Devices (one disk only) | • CD-RW & DVD+-RW,(using packet writing only – one disk only) • Local/LAN Locations, • Removable Media Devices (one disk only) | All |
