Hierarchical storage management
TECHNOLOGY WHICH AUTOMATICALLY MOVES COMPUTER DATA BETWEEN DIFFERENT STORAGE TECHNOLOGIES (SUCH AS DISK AND MAGNETIC TAPE)
Hierarchical Storage Management; Automated tiered storage; Hierarchical storage manager; Hierarchical Storage Manager; Data Facility Storage Management Subsystem Data Facility Product; Storage Management Subsystem; Storage-Management Subsystem; Storage-management subsystem; Storage management subsystem; Storage Management System; Storage management system; System Managed Storage; Storage-management system; Storage-Management System; System-Managed Storage; System-managed storage; Hierarchical storage; Automatic tiering; File grooming
Hierarchical storage management (HSM), also known as Tiered storage, is a data storage and Data management 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.