Users Guide

311 AH0054602-00 M
User’s Guide—Converged Network Adapters
41xxx Series
SCSI
Small computer system interface. A
high-speed interface used to connect
devices, such as hard drives, CD drives,
printers, and scanners, to a computer. The
SCSI can connect many devices using a
single controller. Each device is accessed
by an individual identification number on
the SCSI controller bus.
SerDes
Serializer/deserializer. A pair of functional
blocks commonly used in high-speed
communications to compensate for limited
input/output. These blocks convert data
between serial data and parallel interfaces
in each direction.
serializer/deserializer
See SerDes.
single root input/output virtualization
See SR-IOV.
small computer system interface
See SCSI.
SR-IOV
Single root input/output virtualization. A
specification by the PCI SIG that enables a
single PCIe device to appear as multiple,
separate physical PCIe devices. SR-IOV
permits isolation of PCIe resources for
performance, interoperability, and
manageability.
target
The storage-device endpoint of a SCSI
session. Initiators request data from
targets. Targets are typically disk-drives,
tape-drives, or other media devices.
Typically a SCSI peripheral device is the
target but an adapter may, in some cases,
be a target. A target can contain many
LUNs.
A target is a device that responds to a
requested by an initiator (the host system).
Peripherals are targets, but for some
commands (for example, a SCSI COPY
command), the peripheral may act as an
initiator.
TCP
Transmission control protocol. A set of
rules to send data in packets over the
Internet protocol.
TCP/IP
Transmission control protocol/Internet
protocol. Basic communication language
of the Internet.
TLV
Type-length-value. Optional information
that may be encoded as an element inside
of the protocol. The type and length fields
are fixed in size (typically 1–4 bytes), and
the value field is of variable size. These
fields are used as follows:
 Type—A numeric code that indicates
the kind of field that this part of the
message represents.
 Length—The size of the value field
(typically in bytes).
 Value—Variable-sized set of bytes that
contains data for this part of the
message.
transmission control protocol
See TCP.
transmission control protocol/Internet
protocol
See TCP/IP.
type-length-value
See TLV.