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CrashPlan Cloud
CrashPlan for Small Business

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Code42 Support

Code42 app and Time Machine (CrashPlan for Small Business)


The Code42 app and Time Machine complement each other well and can be used on the same computer, side-by-side, backing up your live data. Do not use the Code42 app to back up Time Machine or Time Machine to back up the Code42 app. Use them both independently to back up your original files. 

Non-Code42 products
​Information about products from other manufacturers is intended as a resource to help you get the most out of CrashPlan for Small Business. However, our Customer Champions cannot provide direct assistance for these products. For assistance with products not developed by Code42, contact the product's manufacturer.

Can I back up my Time Machine data with the Code42 app?

No, the backups.backupdb folder that Time Machine uses to store backups is excluded by default. Backing up this data with the Code42 app is unnecessary as long as the original files are already included in your Code42 app backup file selection.

Here's how you can use the Code42 app and Time Machine side-by-side:

  • If you use an external drive solely to hold your Time Machine backup, then exclude the entire external drive from your Code42 app backup set.
  • If you use an external drive to hold your Time Machine backup and you also use it for storage, you should be all set unless you've changed the default setting for file exclusions. Code42 excludes the default filename for Time Machine backups from going to the cloud destinations by default.  

About the Backups.backupdb folder

The Backup.backupsdb folder is where Time Machine stores its backup data. The location of this file can vary:

  • If Time Machine is used for local backups only, the Backup.backupsdb folder is located at the top of the drive's directory.
  • If Time Machine backs up computers over a wireless or Ethernet network, then the Backup.backupsdb folder is contained within what is known as a sparse bundle disk image. The sparse bundle is located within Time Machine's HD, and it will be prefixed with the name of the corresponding computer. There is a sparse bundle disk image for each Mac backed up over the network.

Back up with the Code42 app to a Time Machine destination

When you specify a volume as a Time Machine destination, it erases the volume first. In order for the Code42 app and Time Machine to back up on the same volume, set up Time Machine first and then point the Code42 app to the volume as a backup destination.

Local vs. remote backup

Time Machine was designed for local backup only, while the Code42 app was designed for local and remote backup. If you want remote backup and just one system, use the Code42 app to back up to a local and cloud destination. If you prefer to use two systems, use the Code42 app for remote backup of your files only (not Time Machine data) and use Time Machine (or Time Machine and the Code42 app) for local backup.

The important thing to remember is don't use the Code42 app to back up Time Machine data; use the Code42 app to back up your original files. If you'd like, you can also use Time Machine to back up your original files. This provides a much more comprehensive and efficient backup solution than trying to use the Code42 app to back up Time Machine directly.