The Inevitable Paradigm Shift: Disk-to-Disk-to-Tape

摘要

The cost of disk has dipped significantly and the prospects of continued improvement in areal density are well known. When all of the potential savings in labor and data availability are taken into consideration, tape is no longer your only choice for backup. It is no longer cost prohibitive to implement disk as your backup repository media, regardless of the size of your enter- phased approach where tape will be moved off and used for archiving. As it was pointed out earlier in the article, there are a number of different disk-to-disk solutions that incorporate tape to address the need for archiving and disaster recovery, but only tape virtualization offers the additional benefits of seamless integration, improved management, the ability for the solution to grow organically with business needs, and a total cost of ownership that is appealing even during difficult economic times.