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For more information, see What should you back up with CrashPlan for Small Business?. In general, we recommend that you back up the files you create, edit, and access. Typically, these are stored in your User directory or Home folder. The CrashPlan app isn't designed to back up system and application files.

This because they calculate KB differently. In addition, you may notice that the CrashPlan app and CrashPlan console show slightly different values for the size of your backup. Why does the CrashPlan app show a different number of files than my computer? (CrashPlan for Small Business).Multiple factors can contribute to this difference, such as our deduplication and compression processes. If you compare the size of your files selected for backup to the file size the CrashPlan app reports it's backing up, you may notice a difference. Why does CrashPlan for Small Business report a different size of backup than my computer? If you receive a backup alert and you're not sure why, see What to do after receiving a backup alert for CrashPlan for Small Business. The CrashPlan app sends email warnings and alerts to help you stay informed about the status of your backups. How CrashPlan for Small Business backup works.However, once your first backup is complete, the process is much faster because the CrashPlan app only needs to back up new files and changed blocks of data for each file. If the block has not yet been backed up, the CrashPlan app compresses the block to save storage space, encrypts the block to secure the data, and sends the block to the backup destination.Īs a result of this analysis, compression, and encryption activity for new files, your first backup may take longer than you expect.If that block was already backed up, the CrashPlan app moves on and analyzes the next block.

The CrashPlan app analyzes a small piece of the file (a block), and checks to see if that block was previously backed up. How does CrashPlan for Small Business backup work?īackup begins with a process called data deduplication.