Glossary
Scalar i500 User’s Guide
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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.
R
Rackmount
An industry standard communication and computer
equipment rack cabinet.
RAS (Reliability, Availability, and Serviceability)
Three key attributes of
computing system quality design. See
Reliability
,
Availability
, and
Serviceability
. An infrastructure to support serviceability in order
to identify, diagnose, and fix problems within the system. This
approach is designed to address the ability of service personnel
and customers to diagnose and resolve problems identified
within the system. Additionally, configuration is addressed to
support detection of hardware configuration compatibility issues
and persistence across FRUs.
RAS ticket
A ticket that alerts service personnel and customers of an
issue with the library. RAS tickets identify which library
components are most likely causing the issue. When possible, a
RAS ticket provides instructions for resolving the issue.
Reliability
A RAS attribute that is designed to prevent failure of a storage
solution. See also
RAS
.
S
SAM (SCSI Architecture Model)
An ANSI standard that defines the
generic requirements and overall framework in which other SCSI
standards are defined. New generations of this standard are
identified by a numeric suffix; for example, the second
generation standard is SAM2.
SAN (Storage Area Network)
A dedicated network that connects storage
devices and servers in a pool, providing consolidated storage and
storage management. Storage interconnects between many
initiators and target devices. The SAN allows for sharing
resources (target devices) among multiple servers (initiators).
SCSI (Small Computer System Interface)
A set of standards for a high-
speed, parallel interface that connects processing devices to