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Storage Networking Fundamentals: An Introduction to Storage Devices, Subsystems, Applications, Management, and Filing Systems by Marc Farley

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Disk-Based Backup

The remainder of this chapter looks at ways disk device and subsystem technology are being used to augment tape technology in SAN backup and recovery systems. The last couple years have seen a renewed interest in this type of solution, but like so many other storage techniques, it is considerably trickier than it first appears. Disk technology in the form of virtual tape has been attempted several times but has rarely worked as well as hoped, except in mainframe environments.

NOTE

Some old pros I know who worked on computer storage technology half a century ago tell me they were predicting the death of tape in the early 1960s. Ever since, there has been something supposedly far better than tape, and every time the new technology ...

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