Record some data to a tape and then to a hard disk drive. Take each and drop them from six foot of the ground, then try recovering the data. The disk might work if you are very lucky, the tape will almost certainly work. At worst the tape casing will required a bit of work to but generally it will be fine. As a data recovery specialist I know which I would rather have my backup archive stored on in the event of an impact, it would be the tape every time.
The point is that the two data storage media are different, and designed for differing purposes. Disk based systems give convenience, fast response and can be an invaluable near-line backup system that will smooth out the delays that could otherwise be caused by minor operating glitches. Tape based systems, however, give a solid backstop of data security and a reliable data audit trail.
The answer to "tape or disk?" is ideally "both". The rather cumbersomely named D2D2T (disk-to-disk-to-tape) systems provide a hybrid of both technologies making use of the speed and flexibility of disk for immediate backup and recovery, but with the robust backing of tape storage to add that extra level of security.
Mark Sear has been involved in data recovery, data conversion, data migration and computer forensics since the early 1980s working as a data recovery engineer, software developer.
The point is that the two data storage media are different, and designed for differing purposes. Disk based systems give convenience, fast response and can be an invaluable near-line backup system that will smooth out the delays that could otherwise be caused by minor operating glitches. Tape based systems, however, give a solid backstop of data security and a reliable data audit trail.
The answer to "tape or disk?" is ideally "both". The rather cumbersomely named D2D2T (disk-to-disk-to-tape) systems provide a hybrid of both technologies making use of the speed and flexibility of disk for immediate backup and recovery, but with the robust backing of tape storage to add that extra level of security.
Mark Sear has been involved in data recovery, data conversion, data migration and computer forensics since the early 1980s working as a data recovery engineer, software developer.
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