JBOD Systems Overview - Disk Expansion Units
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Please note that this article / this category refers either on older software / hardware components or is no longer maintained for other reasons. This page is no longer updated and is purely for reference purposes still here in the archive available. |
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This article will summarize important information about the topic of Disk Expansion Units, also known as JBOD systems, Shelves or Expansion Units.
The systems of themselves do not have any additional value, in principle, but rather must be connected with an intelligent unit. This unit may be a server, or rather so-called Heads or Nodes (terminology normal for storage systems).
This unit will then setup the corresponding RAID array and manage the disks.
General Information
In principle, JBOD systems are constructed as follows:
- a basic enclosure
- a back plane with one or more expander chips and appropriate connections (see SAS Expander)
- redundant power supplies
- Appropriate SAS connections for IN / OUT ports
Connection to the intelligent Unit
Serial attached SCSI and the appropriate cables are used as expansion for the unit (see SAS SATA Cables and Plugs))
Additional Information
- SAS Expander Back Plane
- JBOD Systems (Thomas Krenn Webshop)
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