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Home » Dictionary » Storage

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Numeric

Author: Gabriel Torres Last Updated: October 15, 2005
Category: Storage

Just a Bunch Of Disks

JBOD is a system that allows you to combine several hard disk drives as if they were a single disk. For example, if you have a 20 GB hard disk drive and a 40 GB one installed on the same PC and configure them to use JBOD, the operating system will show them as a single 60 GB drive.

Even though several people consider JBOD a RAID system, this is not true, since it doesn't have none of the two basic RAID concepts: reliability increase and performance increase. JBOD system does not increase the system reliability or its performance.

We can consider JBOD the opposite of partitioning: while partitioning divides one physical hard disk drive into several logical disks, JBOD combine several physical disks into a single logical unit.

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