ATTO Technology ExpressSAS H1208 HBA Installation And Operation Manual page 27

PHY A physical connection between the adapter and a drive on the backplane. Each mini-SAS connector carries
signals for four PHYS
Port An access point in a device
Port Address
Also port number; the address, assigned by the PCI bus, through which commands are sent to an adapter
board
Port Number See port address
SCSI Small Computer Systems Interface: a processor-independent standard for system-level interface between a
computer and intelligent devices including hard disks, floppy disks, CD-ROM, printers, scanners, etc.
SEP SCSI Enclosure Process. A SEP is a device, typically a backplane, that is capable of executing SCSI SES
commands
SES SCSI Enclosure Services. A SCSI specification that defines SCSI commands for controlling an enclosure. These
commands include the capability to control LED indicators on an enclosure
SES-I2C SES over I2C. I2C is used to transport the SES protocol instead of SCSI, SAS, Fibre Channel etc.
SGPIO A serial GPIO protocol used to control LED indicators on a backplane
Sideband Connector Connector on Mini-SAS cables used to carry an SGPIO signal
Transfer Rate The rate at which bytes or bits are transferred, as in megabytes or gigabits per second