|
Normal (full) backup |
Incremental Backup |
Mirror Backup |
Differential Backup |
Definition |
JetSet will back up all the selected files each time the backup job is run. New files will also be appended to the selection. |
JetSet includes all files that have changed since the last backup run (regardless of whether it is normal or incremental). Deleted files will not be removed from the backup set. |
JetSet includes all files that have changed since the last normal (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. |
JetSet includes all files changed or added since the last normal (full) backup. Each backup run will create a new file/folder on the storage media containing new and changed files. |
Tools For File Selection |
Archive Bit |
• Last modified date and time stamp (default)
• Archive Bit |
• Last modified date and time stamp (default)
• Archive Bit |
• Last modified date and time stamp (default)
• Archive Bit |
*Time Consumption |
4 |
2 |
1 |
3 |
*Space Consumption |
4 |
2 |
1 |
3 |
Rollback |
N/A |
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 incremental backup can not be performed onto non-rewritable media, or FTP or Tape is disabled.
Also, if rollback is disabled and compression is used, incremental backup is restricted to 2GB worth of compressed data. |
If the data after compression exceeds 2GB in size, backup will switch to incremental backup with rollback.
Backup can not be performed onto non-rewritable media, or FTP or Tape is disabled.
Backup can not be spanned over multiple disk volumes. |
Can not be performed onto tape media. |
Rotating Backups |
N/A |
Supported: (Setting software to perform a number of increments then return to normal backup). |
N/A |
Supported: (Setting software 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 |
