Even if Disk Were Free You’d Still Want Tape
The cost of disk capacity has come down dramatically over the last two decades and, thanks to technologies like scale-out NAS and object storage, the ability to manage petabytes of data is certainly a possibility. But the cost to power and cool this storage plus the cost of data center floor space have increased dramatically. The net impact is that even if storage vendors gave disk capacity away, the cost to maintain that capacity could bankrupt you.
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NOTE: This column was originally published in the Storage Switzerland Weekly Newsletter.