Compaq StorageWorks UltraSCSI RAID Enclosure (DS-BA370 Series) User's Guide (EK-BA370-UG. C02, September 1998)

Glossary
Glossary–10 UltraSCSI RAID Enclosure
master enclosure
The UltraSCSI RAID enclosure that includes the HSZ series
controllers and cache modules. There is only one master enclosure in
each UltraSCSI RAID subsystem. The SCSI bus address switch
setting is always 0. Using address 0 automatically assigns SCSI bus
device addresses 0, 1, 2, and 3 to the devices.
Mb/s
Megabits per second. The bus speed at which the number of bits are
transferred.
MB/s
Megabytes per second. 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.
megabits per second
See
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 UltraSCSI 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 a temperature is above a specified limit and can
cause equipment failure if not corrected.
pedestal
The common name for a deskside expansion unit.
See
departmental server cabinet.