Virtual TapeServer SCSI-to-FC Adapter User Manual

GL-1
Glossary
A
adapter A printed circuit assembly that translates data between the FC
host processor’s internal bus and a different bus, such as SCSI.
address See SCSI Addressing.
addressing mode Used to create a mapping table that maps devices on the SCSI
bus to Fibre Channel logical units.
AL_PA Arbitrated Loop Physical Address. A unique one-byte valid
value, derived and used in an Arbitrated Loop Topology as
defined in ANSI specification FC_AL ver 4.5.
arbitrated loop See Fibre Channel - Arbitrated Loop. (ANSI specification
FC_AL ver 4.5)
area The second byte of the N_Port Identifier.
auto-assigned mapping A menu item. The auto-addressing option creates a mapping
table using devices discovered upon powering up or resetting the
VT5900-SA, that is not otherwise retained by the VT5900-SA.
B
baud A unit of signaling speed, expressed as the maximum number of
times per second the signal can change the state of the
transmission line or other medium (units of baud are sec
-1
).
Note: With Fibre Channel scheme, a signal event represents a
single transmission bit.
bus A means of transferring data between modules and adapters or
between an adapter and SCSI devices. For a SCSI bus definition,
see SCSI Bus.
C
channel A general term for a path on which electronic signals travel.
clusters Two or more computers sharing the same resources on a
communication link.