JBOD configurations are the wild west of storage. They offer maximum capacity utilization by spanning a logical volume across multiple physical drives. However, this architecture has a fatal flaw:

Unlike RAID, where you can hot-swap a failed drive and rebuild, JBOD repair is a forensic art. It requires a specialized set of software tools and methodologies. Here is the definitive guide to the tools you need to resurrect a failed JBOD. Before we discuss tools, we must understand the pathology. In a standard RAID 5, parity allows data reconstruction if one drive fails. In a JBOD (also called SPAN or BIG), data is written sequentially: Drive A fills up, then Drive B, then Drive C.

By: Storage Tech Desk