Companies are downright being overtaken by data: E-mail, photo files, market data, performance analysis, big data. To prevent being overtaken by the expenses for data archiving as well, HSM offers an efficient and inexpensive archiving solution.
HSM distributes data in an intelligent way between storage devices with different properties. It poses the following questions: Does the data need to be quickly accessible? Or is it used rarely so that loading time is tolerable? It then decides on which storage device to save the data. Often-used data is put on fast but expensive storage devices that need basically no time to load. Seldomly used data is shifted to slower devices that are significantly cheaper. Thus, multi-dimensional storage systems are being built to make sure that every file is stored with costs as low as possible.
The user can access the files as usual through the filing system. A placeholder is put in the original memory location, referring to the new location. When activating a file, it is copied to its original location. To prevent data from being lost in this process, there are several backup copies.