HSM meaning in Information Technology ?

Answer:

What is Hierarchical Storage Management mean?

Hierarchical storage management (HSM) is a data storage technique that automatically moves data between high-cost and low-cost storage media. HSM systems exist because high-speed storage devices, such as solid state drive arrays, are more expensive (per byte stored) than slower devices, such as hard disk drives, optical discs and magnetic tape drives. While it would be ideal to have all data available on high-speed devices all the time, this is prohibitively expensive for many organizations. Instead, HSM systems store the bulk of the enterprise's data on slower devices, and then copy data to faster disk drives when needed. In effect, HSM turns the fast disk drives into caches for the slower mass storage devices. The HSM system monitors the way data is used and makes best guesses as to which data can safely be moved to slower devices and which data should stay on the fast devices.

HSM may also be used where more robust storage is available for long-term archiving, but this is slow to access. This may be as simple as an off-site backup, for protection against a building fire.

HSM is a long-established concept, dating back to the beginnings of commercial data processing. The techniques used though have changed significantly as new technology becomes available, for both storage and for long-distance communication of large data sets. The scale of measures such as 'size' and 'access time' have changed dramatically. Despite this, many of the underlying concepts keep returning to favour years later, although at much larger or faster scales.

reference

Full Form	Category
Hearst Student Media	Academic & Science
Horsham	Airport Code
Hussmann International, Inc.	Business
Heath(s)	Business
Health Sector Management	Business Management
High Salt Medium	Chemistry
Historical Society of Michigan	Community
Holy Smoke Ministry	Community
High School Ministry	Community
High School Musical	Community
High Speed Modem	Computer and Networking
Headend Stealth Modem	Computing
High Security Mode	Computing
Host Switching Module	Computing
High Speed Module	Computing
Hardware Specific Module	Computing
Hot Spare Memory	Computing
Hardware Security Module	Computing
Hierarchical Storage Manager	Computing
Hp (hewlett-packard) Suface Mount	Electronics
Hardware security	General
Hardware Security Modules	General
Host State Machine	General
HP Suface Mount	General
Hickory Springs Manufacturing	General
Hierarchical State Machine	General
Hohenloher Spezial Maschinenbau	General
Hilliard Studio Method	General
Host Security Module	General
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Highway Safety Manual	General
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High Speed Mode	General
Hillman Super Minx	General
Heated Seat Module	General
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High Speed Multiplexer	General
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HAUSNAGAR	Indian Railway Station
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hepatosplenomegaly	Medical
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Hyper Sonic Motor	Military and Defence
Humanitarian Service Medal	Military and Defence
Horsham, Victoria, Australia	Regional