Enterprise Volume Manager (Multi-OS) Version 2.0D Network Administration Guide

Glossary–2 Enterprise Volume Manager (Multi-OS) Network Administration Guide
Glossary
BCV
Business Continuance Volume. A generic term for a virtual disk that is created from a standard
production volume. A BCV can subsequently be used in production tasks such as backups,
application migration, data mining, and testing. A key feature of a BCV is that it can be
accessed while the production volume remains online for normal I/O. The term BCV does not
imply the use of any specific technology.
CLI commands
The set of commands supported by StorageWorks HSG Array Controller Software. For
example, the command SHOW DISKS displays a list of disks attached to the controller.
CLI
Command Line Interpreter or Interface. In StorageWorks, a text-oriented command line
interface that enables configuration and monitoring of an HSG-based storage system by
manually issuing commands to the array controller.
client
A computer or program that requests a service of another computer in a client-server system.
clone
In StorageWorks, an HSG controller-based method of creating a physical copy of a virtual
disk. A duplicate member is created and members of the mirrorset are normalized to ensure
that the data is identical on each member. During creation and normalization, the original
remains online. Normalization of members is not instantaneous, but depends on factors such as
disk size and I/O activity. Virtual disks created by the clone method are often used for tasks
such as backups and application testing. The clone method cannot be used with RAID 3/5
units.
container
In StorageWorks, a logical volume identifier that the HSG controller uses to represent disks in
a storage set. For example, the container identifier M3 could represent a RAID 1 two-disk
mirrorset.
daemon
Diagnostic and Execution Monitor. Pronounced “demon.” A program usually associated with a
UNIX system that performs a utility (housekeeping or maintenance) function without being
requested or even known of by the user.