User`s guide

KZPSA PCI-to-SCSI Storage Adapter
G–2 EK–KZPSA–UG. B01
differential SCSI bus
A signal path where the signal's level is determined by the potential difference
between two wires.
device
General name for any hardware unit connected to the system that is capable of
receiving, storing, or transmitting data.
device driver
An operating system software module used to physically control an I/O device.
failover
A software process that takes place when one controller in a dual-redundant con-
figuration fails and the other controller takes over the devices of the failed con-
troller and services them to the host until or if the failed controller comes back or
is replaced.
firmware
Software that is stored in flash read-only memory that contains a set of instruc-
tions designed to help the KZPSA adapter hardware perform its assigned func-
tions.
host
The primary or controlling computer to which a storage subsystem is attached.
host adapter
Device that connects a host system to the SCSI bus. The device usually performs
the lower layers of the SCSI protocol and normally operates as the initiator.
LUN
A Logical Unit Number is a physical or virtual peripheral device addressable
through a target. LUNs use their target's bus connection to communicate on the
SCSI bus.
NVRAM
Non-Volatile Random Access Memory. A term used to describe memory whose
contents survive loss of power.
PCI
Peripheral Component Interconnect. System's synchronous, asymmetrical I/O
channel.