HP StorageWorks Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide (AA-RPHZF-TE, March 2004)

Glossary
245Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide
N_port
A port attached to a node for use with point-to-point topology or fabric topology.
See point-to-point connection.
network
In data communication, a configuration in which two or more terminals or devices are connected to enable
information transfer.
NL_port
A port attached to a node for use in all three Fibre Channel topologies: point-to-point, arbitrated loop, and
switched fabric.
node
1. In data communications, the point at which one or more functional units connect transmission lines.
2. In Fibre Channel, a device that has at least one N_port or NL_port.
Non-L_port
A node or fabric port that is not capable of performing the arbitrated loop functions and protocols. N_Ports and
F_Ports are loop-capable ports.
nonparticipating mode
A mode within an L_Port that inhibits the port from participating in loop activities. L_Ports in this mode
continue to retransmit received transmission words but are not permitted to arbitrate or originate frames. An
L_Port in nonparticipating mode may or may not have an AL_PA.
See also participating mode.
non-RCS LUN
As applied to Data Replication Manager, a logical unit number (LUN) value that identifies a physical device
unit which exists at one of the two sites and does not have a mirror copy at the other site.
See also remote copy sets, LUN.
normal member
A mirrorset member that, block for block, contains exactly the same data as that on the other members within the
mirrorset. Read requests from the host are always satisfied by normal members.
normalizing
A state in which, block for block, data written by the host to a mirrorset member is consistent with the data on
other normal and normalizing members. The normalizing state exists only after a mirrorset is initialized.
Therefore, no customer data is on the mirrorset.
normalizing member
A mirrorset member whose contents are the same as all other normal and normalizing members for data that has
been written since the mirrorset was created or since lost cache data was cleared. A normalizing member is
created by a normal member when either all of the normal members fail or all of the normal members are
removed from the mirrorset.
See also copying member.
OC-3
An acronym for the optical carrier that provides high-speed bandwidth at 155.3 megabits per second.
other controller
The controller in a dual-redundant pair that is not connected to the controller serving your current CLI session
with a local terminal.
See also this controller, local terminal.