Home > Storage > PowerScale (Isilon) > Product Documentation > Data Protection > High Availability and Data Protection with Dell PowerScale Scale-Out NAS > Nearline, VTL, and tape backup
At the trailing end of the protection continuum lies traditional backup and restore—whether to tape or disk. This is the bastion of any data protection strategy and usually forms the crux of a “data insurance policy.” With high RPO and RTOs—often involving a retrieval of tapes from secure, offsite storage—tape backup is typically the mechanism of last resort for data recovery in the face of a disaster.