Glossary
GL–5
id
SCSI target ID default address for the Multivendor EMU.
See also SCSI target ID.
ID
Identifier. As used in SCSI bus ID, SCSI ID or device ID.
identifier
See ID.
input/output
module
See I/O module.
LED
Light-emitting diode. A semiconductor diode that emits light when voltage is
applied. Typically used on indicator panels to display an operating status.
light-emitting
diode
See LED.
maintenance
terminal
The operator terminal used to identify an HS-family controller, to enable its
host paths, to define its subsystem configuration, and to check its status. The
HS-family maintenance terminal accepts any terminal conforming to
EIA–423. Use the maintenance terminal to configure a storage subsystem.
MB/s
Megabytes per second. The per second byte transfer rate with a binary
multiplier of 1,024,000.
The bus width (8- or 16-bit), the number of bytes per word (1 or 2,
respectively), and the bus clock frequency determines the transfer rate in
MB/s.
megabytes per
second
See MB/s.
node
A SCSI bus target or initiator that uses a SCSI bus ID. For example, disk
drives, tape drives, array controllers, and adapters all have a SCSI bus ID and
are nodes. Hubs, expanders, and converters are devices and do not have a
SCSI bus ID.
An Ultra SCSI bus can have a maximum of 16 nodes (SCSI bus addresses 0
through 15).
A narrow bus can have a maximum of eight nodes (SCSI bus addresses 0
through 7).
overtemperature
A condition where the temperature is above a specified limit and can cause
equipment failure if not corrected.
