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SG0-001 · Question #213

Which of the following describes a selection of controller-less drives?

The correct answer is C. JBOD. JBOD (Just a Bunch Of Disks) describes a configuration where multiple physical drives are treated as independent storage units without being combined into a single logical volume or RAID array by a controller.

Storage Components

Question

Which of the following describes a selection of controller-less drives?

Options

  • AeSCSI
  • BSCSI
  • CJBOD
  • DRAID0

How the community answered

(24 responses)
  • A
    4% (1)
  • C
    92% (22)
  • D
    4% (1)

Why each option

JBOD (Just a Bunch Of Disks) describes a configuration where multiple physical drives are treated as independent storage units without being combined into a single logical volume or RAID array by a controller.

AeSCSI

eSCSI (enhanced Small Computer System Interface) is a protocol for connecting storage devices, not a description of a selection of controller-less drives.

BSCSI

SCSI (Small Computer System Interface) is a standard for connecting and transferring data between computers and peripheral devices, not a description of a specific drive selection or configuration.

CJBODCorrect

JBOD stands for Just a Bunch Of Disks, which refers to a collection of disk drives that are presented individually to the operating system without any form of hardware RAID controller or logical volume management combining them into a single, unified volume. Each disk in a JBOD setup remains a separate entity, fulfilling the description of a selection of controller-less drives in terms of their logical presentation.

DRAID0

RAID0 is a striping technique that combines multiple drives into one logical unit, requiring a controller to manage the data distribution across disks, which contradicts the 'controller-less' aspect.

Concept tested: Storage configurations - JBOD vs. RAID

Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/understanding-disk-management-basic-concepts

Topics

#JBOD#Storage components#Drive enclosures

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