HP StorageWorks 2.32 SAN Switch - Manual (Page 319)

Web Tools Version 3.0.x/4.0.x User Guide Glossary–9
Glossary
Defined Zone Configuration
The set of all zone objects defined in the fabric. May include multiple zone configurations.
See also enabled zone configuration, zone configuration.
Device Connection Controls
Enables organizations to bind an individual device port to a set of one or more switch ports.
Device ports are specified by a WWN and typically represent HBAs (servers).
See also access control lists.
Device
A disk, a RAID, or an HBA.
Disparity
The relationship of ones and zeros in an encoded character. “Neutral disparity” means an equal
number of each, “positive disparity” means a majority of ones, and “negative disparity” means
a majority of zeros.
DLS
Dynamic Load Sharing. Dynamic distribution of traffic over available paths. Allows for
recomputing of routes when an Fx_Port or E_Port changes status.
Domain ID
As applies to HP StorageWorks switches, a unique number between 1 and 239 that identifies
the switch to the fabric and is used in routing frames. Usually automatically assigned by the
switch, but can be manually assigned.
DTE port
A data terminal equipment port capable of interfacing to a transmission circuit through a
connection to a DCE (data communications equipment) port. DTE devices with an RS-232 (or
EIA-232) port interface transmit on pin 3, and receive on pin 2 in a 9-pin connector (reversed
in 25-pin connectors).
See also DCE port, RS-232 port.
DWDM
Dense Wavelength Multiplexing. A means to concurrently transmit more than one stream of
data through a single fiber by modulating each stream of data onto a different wavelength of
light.