The bedrock of storage is the disk drive, but an operating system cannot access disk drives without mediation via logical addressing that translates the physical characteristics of the disk — platters ...

What is a LUN, and why do we need one? In simple terms, a logical unit number (LUN) is a slice or portion of a configured set of disks that is presentable to a host and mounted as a volume within the ...

At one point in time, when you wanted to attach an external block storage device to a server, you mapped it as a Logical Unit (LU) across a Storage Area Network (SAN). In the early days, you would do ...