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Our product offerings have been renamed. Carbonite Home Backup is now Carbonite Safe Backup, and Carbonite Office Backup is now Carbonite Safe Backup Pro.

Adjusting the Maximum Number of Incremental Backups

  • This article is for Windows only

By default, Carbonite Safe Server Backup (CSSB) only allows the user to run 300 Incremental backups. However, users can adjust the Windows Registry to allow up to 500 Incremental backups. CSSB does not support an Incrementals forever approach to backups.

The resources consumed by CSSB during a backup increases for each Incremental backup in the backup chain. The more Incremental backups there are, the more memory CSSB requires and the longer it takes for each backup. In order to keep time and memory usage at reasonable levels, a periodic Full backup is required.

To edit the Windows Registry to allow more incremental backups, follow the steps below:

  1. Launch the Registry editor by typing regedit in the Run or Search fields of the Start menu.
  2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Zmanda\ZWC\1.0\Engine\.
  3. Look for the key MaxBackupLevel.
    1. If MaxBackupLevel is not present, create it. It is a REG_DWORD key.
  4. Set the Value to the number of incremental backups you wish to allow.
    1. This is a Decimal value, and not Hexadecimal (The maximum number is 500).
  5. Restart all Carbonite Safe Server Backup services. This can be done via the Windows Services panel or by clicking Tools > Restart Background Service within the CSSB user interface.
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