Manualshelf

Compaq StorageWorks HSG60 ACS Solution Software V8.6 for Compaq Tru64 UNIX Installation and Configuration Guide

ManualsBrandsHP ManualsSoftwareTru64 UNIX 5.1A
171172173174175176177178179180
Glossary–18 HSG60 ACS Solution Software Version 8.6 for Compaq Tru64 UNIX Installation and Configuration
Guide
stripe The data divided into blocks and written across two or more member disks in
an array.
striped mirrorset See RAID level 0+1.
stripeset See RAID level 0.
stripe size The stripe capacity as determined by n–1 times the chunksize, where n is the
number of RAIDset members.
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 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.
target ID number The address a bus initiator uses to connect with a bus target. Each bus target is
assigned a unique target address.
this controller The controller that is serving your current CLI session through a local or
remote terminal. See also other controller.
tape inline
exerciser
(TILX) The controller diagnostic software to test the data transfer capabilities of
tape drives in a way that simulates a high level of user activity.
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.