Increase the Amount of Memory Allocated to CrashPlan’s Backup Engine

If your CrashPlan app is prone to crashing after starting, it may be running short on allocated memory. The instructions provided by CrashPlan aren’t user friendly to those who are not tech-inclined, so I created two simple scripts. Download, run, enter your password, and done!

These have been tested for OSX 10.7.5 – use at your own risk. Mikahn Media is not responsible for any damage done to your system.

Here is what the scripts do, taken directly from CrashPlan’s support:

1. Stop the backup engine by typing this into the Terminal application:

sudo launchctl unload /Library/LaunchDaemons/com.crashplan.engine.plist

2. Run this command to edit the backup engine:

sudo nano /Library/LaunchDaemons/com.crashplan.engine.plist

3. In /Library/LaunchDaemons/com.crashplan.engine.plist, find this line: -Xmx512m

4. Edit that line to something larger such as 640, 768, 896, or 1024. E.g.: -Xmx1024m

This sets the maximum amount of memory that CrashPlan can use. CrashPlan will not use that much until it needs it. I would recommend starting out setting it to 768, and go higher only if you continue experiencing problems. You can increase it above 1024 if you have a really large file-selection.

5. Hold the Control key and tap the x key to exit. Choose “y” to confirm it.

6. You’ll see the prompt “File Name to Write.” Hit enter to save to the existing location.

7. Start the backup engine by typing:

sudo launchctl load /Library/LaunchDaemons/com.crashplan.engine.plist

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