g-16 EMC Connectrix DS-32B2 and ED-12000B Fabric OS Reference Manual
Glossary
Private
NL_Port An NL_Port that communicates only with other private NL_Ports in
the same loop and does not log in to the fabric.
Protocol A defined method and a set of standards for communication.
Public Device A device that supports arbitrated loop protocol, can interpret 8-bit
addresses, and can log in to the fabric.
Public Loop An arbitrated loop that includes a participating FL_Port, and may
contain both public and private NL_Ports.
Public NL_Port An NL_Port that logs into the fabric, can function within either a
public or a private loop, and can communicate with either private or
public NL_Ports.
Q
Quad A group of four adjacent ports that share a common pool of frame
buffers.
R
R_A_TOV Resource allocation time-out value. The maximum time a frame can
be delayed in the fabric and still be delivered. See also E_D_TOV.
R_RDY Receiver ready. A primitive signal indicating that the port is ready to
receive a frame.
RAID Redundant array of independent disks. A collection of disk drives
that appear as a single volume to the server and are fault tolerant
through mirroring or parity checking. See also JBOD.
Remote Fabric A fabric that spans across WANs by using protocol translation (a
process also known as tunneling) such as Fibre Channel over ATM or
Fiber Channel over IP.
Request Rate The rate at which requests arrive at a servicing entity. See also Service
Rate.
Root Account A login used for debugging purposes and is not intended for
customer use.