Ultrascs, Q ultrascsi raid enclosur, Ultrascsi – HP Array Controller HSG V8.7 Software User Manual
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Glossary
Glossary–16 UltraSCSI RAID Enclosure
See also STERMPOWER.
topology
The physical arrangement and relationship of interconnected nodes
and SCSI buses in a network. A legal topology must satisfy all the
requirements of the associated SCSI bus (Fast 10, UltraSCSI, and so
forth).
A 3-way SCSI connector.
An improvement in SCSI technology invented in 1993 by the Digital
Equipment Corporation (now Compaq Computer Corporation)
StorageWorks Engineering Group. Subsequently, the ANSI SCSI
standards committee issued standard X3T10 for UltraSCSI.
The UltraSCSI improvements over Fast SCSI include the following:
•
Maximum transfer rate increases from 10 Mb/s to 20 Mb/s
•
Maximum wide bus bandwidth increases from 20 MB/s to 40
MB/s
•
VHDCI cables and connectors are significantly thinner and
smaller
See also Fast 20.
UltraSCSI domain
A single, logical UltraSCSI bus composed of multiple diverse bus
segments.
See also bus segment.
A 24-drive SBB RAID shelf, such as the DS–BA370 series.