lagringsmedia

Lagringsmedia (storage media) is a collective term for physical materials used to store digital information and retain it when systems are powered off. They are non-volatile storage, meaning data persists after shutdown, and they complement volatile memory such as RAM in computing environments. Lagringsmedia supports archival, backup, and active data access.

Common types include magnetic tape, hard disk drives (HDDs), solid-state drives (SSDs), optical discs (CDs, DVDs, Blu-ray), and flash memory (USB drives, SD cards). Magnetic tape is cost-effective for long-term archival storage with high capacity but slower access times. HDDs provide online, random-access storage with higher speeds but mechanical risk. SSDs offer faster I/O, lower latency, and greater durability. Optical media suits offline storage and distribution; flash memory remains portable and robust.

Storage media are used in various configurations: direct-attached storage, network-attached storage (NAS), storage area networks (SAN), and cloud-based object storage. Interfaces such as SATA, SAS, NVMe, USB, and Thunderbolt connect drives to systems. Data integrity and longevity are addressed with error detection and correction, redundancy (RAID), and periodic migrations to newer media to mitigate obsolescence.

Lifecycle considerations include media degradation, bit rot, and technology obsolescence. Effective practices combine regular backups, versioning, and planned migrations to newer formats. The choice of lagringsmedia depends on cost, performance, capacity, and regulatory requirements for retention and accessibility.