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To add a computer, users simply download the CrashPlan app from the CrashPlan console, install it, and sign in. The device then appears on the Active Devices list in the CrashPlan console. When a backup is unable to reach 100% complete, it is often because the CrashPlan app can't access some of the files. This may happen if a file is in use by another application or has incorrect permissions. Why isn’t this backup reaching 100% complete? This is because the CrashPlan app and CrashPlan console calculate file sizes differently. In addition, users may notice that the CrashPlan app and CrashPlan console show slightly different values for the size of backup.

Why does the CrashPlan app show a different number of files than my computer? (CrashPlan).

Multiple factors can contribute to this difference, such as our de-duplication and compression processes. If users compare the size of files selected for backup to the file size the CrashPlan app reports it's backing up, they may notice a difference. Why does the CrashPlan app report a different file size than the size of files selected for backup? However, once the first backup is complete, future backups are much faster, because the CrashPlan app only needs to back up new files and changed blocks of data for each file.

The length of time for the initial backup can quite literally range from minutes to weeks, and is dependent on many factors, including the number and size of files being backed up, the backup destination, network topology, and available device resources.

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, a device’s initial backup takes much longer than subsequent, incremental backups.

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. Backup begins with a process called data de-duplication.