HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide (EK-G80TS-SA. C01, March 2005)

Glossary
285HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide
FWD SCSI
A fast, wide, differential SCSI bus with a maximum 16-bit data transfer rate of 20 MB/s.
See also SCSI and FD SCSI.
GBIC
Gigabyte interface converter.
giga
A prefix indicating a billion (10
9
) units.
gigabaud
An encoded bit transmission rate of one billion (10
9
) bits per second.
gigabyte
A value normally associated with disk drive storage capacity, meaning a billion (10
9
) bytes.
The decimal value 1024 is usually used for one thousand.
GLM
Gigabit link module.
half-duplex
A communications system in which data can be either transmitted or received but only in
one direction at one time.
hard address
The AL_PA that an NL_Port attempts to acquire during loop initialization.
HBVS
Host-based volume shadowing. Also known as Phase 2 volume shadowing.
HIPPI–FC
Fibre Channel over HIPPI.
host
The primary or controlling computer to which a storage subsystem is attached.
host adapter
A device that connects a host system to a SCSI bus. The host adapter usually performs the
lowest layers of the SCSI protocol. This function may be logically and physically integrated
into the host system.
host compatibility mode
A setting used by the controller to provide optimal controller performance with specific
operating systems. This improves the controller performance and compatibility with the
specified operating system.