Diskvolum

A diskvolum is a logical storage unit presented to an operating system for storing data. It may be created from a single physical disk partition or from multiple disks and is usually formatted with a filesystem and mounted so that applications can read and write files. The exact term and implementation vary by platform: Windows uses the concept of a volume on basic or dynamic disks; Linux and other Unix-like systems refer to a mounted filesystem on a block device; macOS uses volumes within its filesystem structure. Diskvolums are typically managed by a volume manager or the operating system’s disk subsystem, and are defined by partition tables such as MBR or GPT. In some environments, additional layers such as logical volume managers (for example LVM), ZFS volumes, or storage spaces are used to build flexible or pooled storage.

Creation and management

Diskvolum creation begins with partitioning or by combining multiple disks under a volume manager. The resulting unit is formatted with a filesystem (NTFS, ext4, XFS, APFS, etc.) and assigned a mount point or drive letter. Volumes can be resized, cloned, replicated, or snapshotted depending on the technology. They may also support redundancy and performance features through RAID, mirroring, striping, or through advanced filesystems like ZFS. Common variations include basic volumes, dynamic or logical volumes, and virtual or cloud volumes. Storage planning emphasizes backup, recovery, data integrity, and security to protect the contents of the diskvolum.