Glossary
Scalar i500 User’s Guide 553
Media changer device
A SCSI term referring to a tape library or a
partition, including the robot that services it.
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.
Pathname A list of directories separated by slashes (/) and ending with
the name of a directory or nondirectory file. A pathname is used to trace a
path through the file structure to locate or identify a file.
Picker The robotic hand that handles cartridges.
Point to Point A Fibre Channel topology that consists of a dedicated
connection between two devices: a sending device and a receiving device.
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