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Just a bunch of disks

(also JBOD)

Just a bunch of disks definition

Just a bunch of disks refers to a computer storage configuration where multiple hard drives are connected to a computer system but operate independently rather than being configured together in a RAID (redundant array of independent disks) setup.

In JBOD, each disk maintains its file system and is managed separately, which means the total storage capacity is simply the sum of all the individual disks. This setup provides no data redundancy or performance enhancement that RAID configurations offer. If one disk in a JBOD setup fails, only the data on that particular disk is lost without impacting the other disks.

See also: RAID 0, RAID 1, RAID 2, RAID 3, RAID 4, RAID 5, RAID 51, RAID 5EE, RAID 6

Key points about JBOD

  • Individual disk access. Each disk in a JBOD setup is accessed and managed separately by the operating system or storage controller — each disk maintains its own file system and storage space.
  • Storage flexibility. JBOD is often used to maximize storage capacity. It allows the combination of drives of different sizes and speeds, which is impossible in certain RAID configurations.
  • Simple configuration. Setting up a JBOD is typically simpler than configuring a RAID array, as it doesn't require special RAID hardware or complex setup procedures.
  • Use cases. JBOD is a good choice for situations where large amounts of storage are needed without the requirements for redundancy or enhanced performance. It's often used when data is not critical or backed up in other ways.