HP 316095-B21 - StorageWorks Edge Switch 2/24 User Manual page 138

Glossary
data center
A collection of servers and data storage devices, usually in one location, administered by an
information technology/information services (IT/IS) manager.
default
Pertaining to an attribute, value, or option that is assumed by a system when none is explicitly
specified (D, I).
default zone
A zone that contains all attached devices that are not members of a separate active zone.
destination
A point or location, such as a processor, Director or Switch, or server, to which data is
transmitted (D).
destination address
D_ID. An address identifier that indicates the targeted destination of a data frame.
device
(1) Mechanical, electrical, or electronic hardware with a specific purpose (D). See also
managed product.
(2) See node.
device number
In a channel subsystem, four hexadecimal digits that uniquely identify an I/O device (D).
diagnostics
(1) The process of investigating the cause or nature of a problem in a product or system. (2)
Procedures or tests used by computer users and service personnel to diagnose hardware or
software problems (D).
dialog box
A pop-up window in the user interface with informational messages or fields to be modified or
completed with desired options.
D_ID
See destination address.
Director
An intelligent, highly-available, Fibre Channel switch providing any-to-any port connectivity
between nodes (end devices) on a switched fabric. The Director sends data transmissions (data
frames) between nodes in accordance with the address information present in the frame
headers of those transmissions.
DNS name
Domain name system or domain name service. Host or node name for a device or managed
product that is translated to an Internet protocol (IP) address through a domain name server.
Glossary–8 embedded web server user guide