Tape drives are no longer supported with the latest CMS releases and USB storage devices are not supported in a virtual environment. Therefore, you should be using a network mount point as your backup device. You must keep enough free space on your device for scheduled maintenance backups. This means that you must periodically check the network mount point for available space and remove older backup files to increase the storage space. Ensure that you include the network directory in the system backups of your company's non-CMS servers.