A method for fast tape backups and restores
Leonidas Drizis · Software Practice and Experience · 1993
Abstract This paper describes a method for fast backups and restores on tape drives. By using a tight synchronization between disk and tape accesses, the total throughput can be accelerated by a factor ranging from 30 to 100 per cent. The method imposes no special requirements on an operating system; only a timer with a resolution better than one fiftieth of a second is needed. Further, it can be used with virtually all types of streaming tapes and backup data formats.