If your device has a very large file selection, sometimes CrashPlan needs to be allocated more system memory (RAM) in order to properly process the full amount of your data. This is typically indicated by the CrashPlan application crashing and quitting unexpectedly shortly after opening. To resolve, you can allocate more memory using the CrashPlan Command Line Interface:
1. Open the CrashPlan app
2. Press Shift + Control + C (Option + Command + C on Mac) to open the CrashPlan command line interface
3. Enter the following command, using a value appropriate for the size of your backup selection (for example, 4096 for a 4 TB selection): java mx 4096
4. Press Enter on the keyboard. The CrashPlan app closes after you enter this command and you can re-open it manually.
The value you use will depend on the amount of data you have selected, and is allocated in 1024mb increments per TB of data. Some common values are listed below:
- 2 TB - 2048
- 3 TB - 3072
- 4 TB - 4096
- 5 TB - 5120
- 10 TB - 10240
Once the proper amount of memory is allocated, the CrashPlan application should continue backing up your data and will no longer crash or quit unexpectedly.