Glossary
Scalar i500 User’s Guide
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or applications. When the storage space is divided into smaller
parts, each part is configured with its own SCSI unique identifier,
or LUN.
M
Magazine
A container for removable media storage used in tape
libraries.
Media
A material that stores data, such as tapes in cartridges or optical
disks.
Media ID
A barcode number attached to a specific piece of media.
Media type
A format/size of media, for example, LTO.
Medium
See
Media
.
Mixed media
The ability of a library to simultaneously support multiple
types of storage media.
N
N_Port
Node Port. It only has the capability to communicate through an
F-Port. It is a port on a computer, disk drive, and so on, through
which the device does its Fibre Channel communication as a
direct fabric-attached port for use with the point-to-point or
fabric topology. It is identified by a world wide name.
NL_Port
Node Loop Port. It has the capability to communicate over both
FC-AL hubs and through F_Ports.
O
Online
A status for a component that indicates it is active and available
for use.
Operator Intervention Message
See
RAS ticket
.
OS (Operating System)
A control program for a computer that allocates
computer resources, schedules tasks, and provides the user with
a way to access the resources.
P
Partition
An abstraction of an underlying physical library that may
present a different personality, capacity, or both to a host. It is a
representation of real physical elements, combined to create a
grouping that is different from the physical library. Also a logical
portion of the physical library that is viewed by the host as if it is
a complete library. Partitions present the appearance of multiple,
separate libraries for purposes of file management, access by
multiple users, or dedication to one or more host application.
