HP StorageWorks IBM AIX Kit V3.0B for Enterprise Virtual Array Installation and Configuration Guide (AA-RUHAB-TE, October 2003)

Glossary
55IBM AIX Kit V3.0B for Enterprise Virtual Array Installation and Configuration Guide
SMART
Self-Monitoring, Analysis, and Reporting Technology. An industry standard for running
internal diagnostics on disk drives and making predictive failure analysis. If a physical disk
drive reports an imminent failure, the controllers redistribute data to other drives. The
SMART message is reported and should trigger the immediate corrective action to replace
the drive.
snapshot
A temporary virtual disk (VD) that reflects the contents of another virtual disk at a
particular point in time. A snapshot operation is done only on an active virtual disk. Only
one snapshot of an active virtual disk can exist at any point. The active disk and its snapshot
constitute a virtual family.
See also active virtual disk, virtual disk copy, and virtual disk family.
SSN
Storage System Name. A Command View EVA-assigned, unique 20-character name that
identifies a specific storage system.
storage pool
The aggregated blocks of available storage in the total physical disk array.
storage system
The controllers, storage devices, enclosures, cables, and power supplies and their software.
Storage System Scripting Utility (SSSU)
A command-line application supplied in the host operating system kits that allows for
control of the Enterprise Virtual Array.
Storage System Name
See SSN.
StorageWorks
The HP name used to describe the set of rack-mounted enclosures containing controllers,
transceivers, I/O modules, EMUs, disk drives, cables, blowers, and power supplies used to
design and configure a solution-specific storage system.
switch
An electromechanical device that initiates an action or completes a circuit.
TB
Terabyte. A term defining either:
■ A data transfer rate.
■ A measure of either storage or memory capacity of 1,099,5111,627,776 (2
40
) bytes.
See also TBps.