In 2009 an obvious theme is cutting costs. In IT and storage in particular that cost cutting will be popularized by data archiving and data reduction vendors. Both are very legitimate steps to take.

In the typical data center a good rule of thumb is that 80% of the data on primary storage can be migrated to an archive platform. The user buys the archive solution of their choice, then migrates all this data, but where is the ROI? Clearly there is now acres of free disk space on the primary storage platforms and some ROI can be derived if this process delays the purchase of additional storage, but the storage administrator can not start turning off empty drives. There aren’t any. The way most storage arrays work, the remaining data is still scattered across all the drives in each LUN.