HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide (EK-G80TS-SA. C01, March 2005)

Glossary
299HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide
stripe size
The stripe capacity as determined by n–1 times the chunksize, where n is the number of
RAIDset members.
striped mirrorset
See RAID level 0+1.
stripeset
See RAID level 0.
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 companion devices after
the companion controller fails.
switch
A method that controls the flow of functions and operations in software.
synchronous
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.
TILX
Tape inline exerciser. The controller diagnostic software to test the data transfer capabilities
of tape drives in a way that simulates a high level of user activity.