HP 316095-B21 - StorageWorks Edge Switch 2/24 User Manual page 218

Glossary
cyclic redundancy check
Also known as CRC. System of error checking performed at both the sending and receiving
station using the value of a particular character generated by a cyclic algorithm. When the
values generated at each station are identical, data integrity is confirmed.
DASD
Direct access storage device such as a disk drive.
datagram
See Class 3 Fibre Channel service.
default
Pertaining to an attribute, value, or option that is assumed when none is explicitly specified.
default zone
Contains all attached devices that are not members of a separate zone.
destination address
Address identifier that indicates the targeted destination of a data frame.
device
Product, connected to a managed Director, that is not controlled directly by the Product
Manager. See also node.
diagnostics
Procedures used by computer users and service personnel to diagnose hardware or software
error conditions.
dialog box
A dialog box is a window containing informational messages or data fields to be modified or
filled in with desired options.
D_ID
See destination address.
Director
An intelligent Fibre Channel switching device 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 IP address through a domain name server.
domain ID
Number (1 through 31) that uniquely identifies a Switch in a multiswitch fabric. A distinct
domain ID is automatically allocated to each Switch in the fabric by the principal Switch.
Glossary–4 ha-fabric manager user guide