How to Save on Data Storage
Enterprise data storage has almost become a science unto itself, with the days of simple backup long gone. Now in regular use are so-called "tiers" of storage, as the data is judged by various business criteria as to its timeliness and general importance. High-value data used on a daily or regular basis is housed on fast primary disks, or "online," storage; data that may be accessed on occasion goes on slower, cheaper disks for "nearline" storage; and old or rarely accessed files go into storage tape, or the "offline" tier. By splitting the tiers in this fashion, enterprises can save greatly on power draw, cost and impact on the environment.