HSM

Hierarchical Storage Management

HSM

(1) (Hierarchical Storage Management) The automatic movement of files from hard disk to slower, less-expensive storage media. The typical hierarchy is from magnetic disk to optical disc to tape, or from magnetic disk to tape. HSM software constantly monitors hard disk capacity and moves data from one storage level to the next based on age, category and other criteria as specified by the network or system administrator. HSM often includes a system for routine backup as well.

When a file is moved off the hard disk, it is replaced with a small stub file that indicates where the backup file is located.

Tier 0 Storage
Increasingly, solid state drives (SSDs) are used to hold data that are most frequently accessed and are a level higher than the hard disks. Consequently, data may migrate back and forth between the hard disk and SSD before being stored on optical and tape drives. See tape backup, active archiving, demigration and SSD.

Data Migration

This is the data migration path in an HSM system. The advantage of optical and magnetic tape media is that they can be taken off premises for protection against fire and accidents.

(2) (Hardware Security Module) A device that provides strong security for storing root keys for PKI, blockchain and other cryptographic functions. See PKI and cold wallet.

A Very Safe Place

Gemalto's SafeNet Luna HSM provides secure storage for root keys. This unit can be broken up into 100 cyrptographically isolated partitions, each acting as an independent HSM. (Image courtesy of Gemalto NV, www.gemalto.com)

HSM

Acronym	Definition
HSM➣High School Musical
HSM➣High Speed Machining
HSM➣Hierarchical Storage Management
HSM➣Hardware Security Module
HSM➣Hyper Sonic Motor (Sigma lenses)
HSM➣High Shear Mixer
HSM➣Health Sciences and Medicine (Australia)
HSM➣High-Speed Memory
HSM➣High Speed Module
HSM➣Host Switching Module
HSM➣Hot Spare Memory
HSM➣High Speed Memory
HSM➣High Speed Mode
HSM➣High Security Mode
HSM➣Hierarchical Storage Manager
HSM➣Homeland Security Management (various organizations)
HSM➣Hospital de Santa Maria
HSM➣Host Security Module
HSM➣Helicopter Maritime Strike
HSM➣Hot Strip Mill
HSM➣Humanitarian Service Medal
HSM➣Heritage Square Museum (Los Angeles, CA)
HSM➣Hepatosplenomegaly
HSM➣Housing Services Manager (various locations)
HSM➣Hikari Sentai Maskman (Super Sentai Series; Japan)
HSM➣High Speed Modem
HSM➣Hardware Specific Module
HSM➣Hunger Solutions Minnesota
HSM➣Hazardous Substance Management
HSM➣Hialeah Sound Machine (band)
HSM➣Helix Security Manager (software)
HSM➣Heathfield St. Mary (Ascot, Berkshire, England, UK)
HSM➣Health and Safety Manual
HSM➣Heat Seeking Missile
HSM➣Hubble Servicing Mission
HSM➣HealthSystems of Mississippi
HSM➣Hospitaller Sisters of Mercy
HSM➣Hardware to Software Migration (computer programming)
HSM➣Hull Stress Monitoring
HSM➣Hospitality Supply Management Forum
HSM➣Hydraulic Start Motor
HSM➣Hermetically Sealed Microcircuit
HSM➣Hierarchical Storage Module
HSM➣Harmonic Spin Matching
HSM➣Harmonic Subcarrier Method
HSM➣Hardened Silo Missile
HSM➣Headend Service Module
HSM➣Head-Spine Model (aeromedical research)
HSM➣Harvard Stanford MIT (top US research universities)