HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide (EK-G80TS-SA. C01, March 2005)

Glossary
290 HSG60 and HSG80 Array Controller and Array Controller Software Troubleshooting Guide
MIST
Module Integrity Self-Test.
MSCP
Mass storage control protocol. The protocol by which blocks of information are transferred
between the host and the controller over the CI bus.
Multiple-bus Failover
A controller operational mode that allows the host to control the failover process by moving
the unit(s) from one controller to another.
N_Port
A port attached to a node for use with point-to-point topology or fabric topology.
network
In data communication, a configuration in which two or more terminals or devices are
connected to enable information transfer.
NL_Port
A port attached to a node for use in all three topologies.
node
In data communications, the point at which one or more functional units connect
transmission lines. In Fibre Channel, a device that has at least one N_port or NL_port.
nominal membership
The desired number of mirrorset members after the mirrorset is fully populated with active
devices. If a member is removed from a mirrorset, the actual number of members may fall
below the nominal membership.
Non-L_Port
A node-of-fabric port that is not capable of performing the Arbitrated Loop functions and
protocols. N_ports and F_ports are loop-capable ports.
non-participating mode
A mode within an L_port that inhibits the port from participating in loop activities. L_ports
in this mode continue to retransmit received transmission words but are not permitted to
arbitrate or originate frames. An L_port in non-participating mode may or may not have an
AL_PA.
See also participating mode.
nonredundant controller configuration
A controller configuration that does not include a second controller.
nonvolatile memory
See NVM.