Mapping Table POST
gl-4 Glossary
62-9301-01
Mapping Table
A table which is indexed by sequential LUN
values, indicating selected BUS:TARGET:LUN
devices. It is used by the FCR200 to perform Fibre
Channel-to-SCSI operations by default.
MIB
See
Management Information Base (MIB)
on page
gl-3
.
Multiplexer
A device that allows two or more signals to be
transmitted simultaneously on a single channel.
Motherboard
The main PCA of the FCR200 that provides a
physical and logical connection between Fibre
Channel and SCSI devices.
- N -
N_Port
A FC term defining a “Node” port. A FC-defined
hardware entity that performs data
communication over the FC link. It is identifiable
by a unique Worldwide Name. It can act as an
originator or a responder.
N_Port Identifier
A FC term indicating a unique address identifier
by which an N_Port is uniquely known. It consists
of a Domain (most significant byte), an Area, and a
Port, each 1 byte long. The N_Port identifier is
used in the Source Identifier (S_ID) and
Destination Identifier (D_ID) fields of a FC frame.
Node Name
A field value under the FC Status Menu. The
unique FC identifier, a 64-bit value, the factory
assigns to the FCR200.
- O -
Offline
Taking the FCR200 offline indicates that all SCSI
and FC adapters in the FCR200 are offline.
Taking a SCSI adapter offline means ending
inputs/outputs and suspending all transactions
going from the FCR200 to the specified SCSI
devices. The SCSI adapter is no longer active or
available for access.
Taking a FC adapter offline means ending inputs/
outputs and suspending all transactions going
from the FCR200 to the specified FC device.
Online
For the FCR200, online indicates that at least one
adapter in the FCR200 is active and available for
access.
For a SCSI adapter, online indicates the SCSI
adapter is active and available for access and
input/output processing.
For a FC adapter, online indicates the FC adapter is
active and available for access and input/output
processing.
Originator
The Fibre Channel N_Port responsible for starting
an exchange. A FC originator is comparable to a
SCSI initiator.
- P -
Point-to-Point
One of three existing FC topologies, in which two
ports are directly connected by a link with no
fabric, loop, or switching elements present. The
FCR200 supports all topologies.
Port Name
A field value under the FC Status Menu; the FC
port identifier; a 64-bit value the factory assigns to
each FC adapter.
POST
See Power On Self Test.
