HSG80 Array Controller V8.7 Command Line Interface Reference Guide
Glossary–25
Glossary
storageset
(1) A group of devices configured with RAID techniques to operate as a single container. (2)
Any collection of containers, such as stripesets, mirrorsets, striped mirrorsets, and RAIDsets.
storageset expansion
The dynamic expansion of the storage capacity (size) of a unit. A storage container is created
in the form of a concatenation set which is added to the existing storage set defined as a unit.
StorageWorks
A family of modular data storage products that allow customers to design and configure their
own storage subsystems. Components include power, packaging, cabling, devices, controllers,
and software. Customers can integrate devices and array controllers in StorageWorks
enclosures to form storage subsystems. StorageWorks systems include integrated devices and
array controllers to form storage subsystems.
stripe
The data divided into blocks and written across two or more member disks in an array.
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 its companion’s devices when
the companion controller fails.
switch
A method that controls the flow of functions and operations in software.