HP StorageWorks XPath OS 7.4.X System Error Messages Reference Guide (AA-RVHGC-TE, September 2005)
XPath OS 7.4.x system error messages reference guide 131
port log
A record of all activity on a switch, kept in volatile memory.
port name
A user-defined alphanumeric name for a port.
port_name
The unique identifier assigned to a Fibre Channel port. Communicated during log in and port discovery.
POST
Power-on self-test. A series of tests run by a switch after it is turned on.
principal switch
The first switch to boot up in a fabric. Ensures unique domain IDs among roles.
RCS
Reliable Commit Service. Refers to HP-specific ILS command code.
RSCN
Registered state change notification. A switch function that allows notification of fabric changes to be sent
from the switch to specified nodes. The fabric controller issues RSCN requests to N_Ports and NL_Ports,
but only if they have registered to be notified of state changes in other N_Ports and NL_Ports. This
registration is performed using the State Change Registration (SCR) Extended Link Service. An N_Port or
NL_Port can issue an RSCN to the fabric controller without having completed SCR with the fabric
controller.
RX
Receiving frames.
SAN
Storage area network. A network of systems and storage devices that communicate using Fibre Channel
protocols.
SCSI
Small Computer Systems Interface. A parallel bus architecture and a protocol for transmitting large data
blocks to a distance of 15 to 25 meters.
SFP transceiver
Small-form-factor pluggable. A transceiver used on 2-GB/sec switches that replaces the GBIC.
SFP cable
A cable specifically designed for use with an SFP transceiver. Not compatible with GBICs.
Simple Name Server (SNS)
A switch service that stores names, addresses, and attributes for up to 15 minutes and provides them as
required to other devices in the fabric. SNS is defined by Fibre Channel standards and exists at a
well-known address. Also known as a directory service or a Name Server.
SNMP
Simple Network Management Protocol. An Internet management protocol that uses either IP for
network-level functions and UDP for transport-level functions, or TCP/IP for both. Can be made available
over other protocols, such as UDP/IP, because it does not rely on the underlying communication
protocols.