Avago Technologies MegaRAID SCSI 320-0 (520-0 CH) - Manual (Page 125)

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SCSI ID A way to uniquely identify each SCSI device on the SCSI bus. Each SCSI
bus has eight available SCSI IDs numbered 0 through 7 (or 0 through 15
for Wide SCSI). The Storage Adapter (host adapter) usually gets the
highest ID (7 or 15) giving it priority to control the bus.
Single-Ended
SCSI A hardware specification for connecting SCSI devices. It references each
SCSI signal to a common ground. This is the most common method
(as opposed to differential SCSI, which uses a separate ground for
each signal).
TolerANT A technology developed and used by LSI to improve data integrity, data
transfer rates, and noise immunity through the use of active negation and
input signal filtering.
Ultra SCSI A standard for SCSI data transfers. It allows a transfer rate of up to
20 Mbytes/s over an 8-bit SCSI bus and up to 40 Mbytes/s over a 16-bit
SCSI bus.
Ultra2 SCSI A standard for SCSI data transfers. It allows a transfer rate of up to
40 Mbytes/s over an 8-bit SCSI bus, and up to 80 Mbytes/s over a 16-bit
SCSI bus.
Ultra160 SCSI A standard for SCSI data transfers. It allows a transfer rate of up to
160 Mbytes/s over a 16-bit SCSI bus.
Ultra320 SCSI A standard for SCSI data transfers. It allows a transfer rate of up to
320 Mbytes/s over a 16-bit SCSI bus.
VHDCI Very High-Density Cable Interconnect. This cable is used to connect
external connectors to your Storage Adapter.