Specifications

Glossary
969Fabric OS Version 3.1.x/4.1.x Reference Guide
Public Device
A device that supports arbitrated loop protocol, can interpret 8-bit addresses, and can log into 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.
Quad
A group of four adjacent ports that share a common pool of frame buffers.
QuickLoop
An HP StorageWorks product that makes it possible to allow private devices within loops to
communicate with public and private devices across the fabric through the creation of a larger loop.
May also refer to the arbitrated loop created using this software. A QuickLoop can contain a
number of devices or looplets; all devices in the same QuickLoop share a single AL_PA space.
A means of allowing private hosts to communicate with private targets across a switched fabric.
The QuickLoop/Fabric Assist feature also allows:
■ Private hosts to communicate with public targets across a switched fabric
■ Private hosts to communicate with private targets that are not resident on the same switch
across a switched fabric
See also Fabric Access, fabric assist, and translative mode.
QuickLoop Zoning
Protects devices from disruption by unrelated devices during critical processes; for example,
during a tape backup session.
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, RR_TOV.
R_RDY
Receiver ready. A primitive signal indicating that the port is ready to receive a frame.