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.
Question
Which of the following describes a selection of controller-less drives?
Options
- AeSCSI
- BSCSI
- CJBOD
- DRAID0
How the community answered
(24 responses)- A4% (1)
- C92% (22)
- D4% (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.
eSCSI (enhanced Small Computer System Interface) is a protocol for connecting storage devices, not a description of a selection of controller-less drives.
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.
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.
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
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