When it comes to deciding on a backup strategy, experts recommend the "rule of three" - three copies of your data in at least 2 different locations. CrashPlan for Small Business accomplishes this by backing up your files to our secure cloud and also offers the ability to back up to local external drives.
While it may be tempting to delete files on your computer to free up space and rely on your CrashPlan for Small Business cloud or local backup, this compromises your backup strategy and puts your data at risk.
In the event of a drive failure or file corruption, there is a chance that a file could become unrecoverable. CrashPlan accounts for this by running regular archive maintenance and re-uploading a new version of a file if needed, but this can only occur if the original file remains on your computer.
For more information on deleted files, see our Deleted files FAQ.