Specifications

GL–22 Glossary
striping The technique used to divide data into segments, also called chunks. The
segments are striped, or distributed, across members of the stripeset. This
technique helps to distribute hot spots across the array of physical devices to
prevent hot spots and hot disks.
Each stripeset member receives an equal share of the I/O request load, improving
performance.
surviving controller The controller in a dual-redundant configuration pair that serves its companion’s
devices when the companion controller fails.
switch A method that controls the flow of functions and operations in software.
synchronous Pertaining to a method of data transmission which allows each event to operate in
relation to a timing signal.
See also asynchronous.
tape A storage device supporting sequential access to variable sized data records.
target (1) A SCSI device that performs an operation requested by an initiator. (2)
Designates the target identification (ID) number of the device.
this controller The controller that is serving your current CLI session through a local or remote
terminal.
See also other controller.
topology An interconnection scheme that allows multiple Fibre Channel ports to
communicate with each other. For example, point-to-point, Arbitrated Loop, and
switched fabric are all Fibre Channel topologies.
transfer data rate The speed at which data may be exchanged with the central processor, expressed
in thousands of bytes per second.
ULP Upper Layer Protocol.
ULP process A function executing within a Fibre Channel node which conforms to the Upper
Layer Protocol (ULP) requirements when interacting with other ULP processes.