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 ...

Disk drives are the foundation of modern data storage, but operating systems cannot use physical storage directly. The platters, heads, tracks and sectors of a physical drive must be translated into a ...

The fundamental data structure in a data processing system. Any unit of data defined for processing is a data element; for example, ACCOUNT NUMBER, NAME, ADDRESS and CITY. A data element is defined by ...

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 ...

For VMware VI3 and vSphere environments, there is no clear guidance on how storage should be sized. We do have one firm piece of information, and that is the configuration maximums document. For both ...