HP StorageWorks XPath OS 7.4.X Administrator Guide (AA-RVHDD-TE, February 2006)

XPath OS 7.4.x administrator guide 113
originator
The Nx_Port that originated an exchange.
out-of-band
Transmission of management protocol outside of the Fibre Channel network, usually over Ethernet.
OX_ID
Originator ID or exchange ID. Refers to the exchange ID assigned by the originator port.
packet
A set of information transmitted across a network. See also frame.
parallel
The simultaneous transmission of data bits over multiple lines.
path selection
The selection of a transmission path through the fabric. HP StorageWorks switches use the FSPF protocol.
See also FSPF.
persistent error log
Error messages of a high enough level (by default, Panic or Critical) are saved to flash memory on the
switch instead of to RAM. These messages are saved over reboots and power cycles, constituting the
persistent error log. Note that each CP on an HP StorageWorks Core Switch 2/64 has its own unique
persistent error log.
phantom address
An AL_PA value that is assigned to a device that is not physically in the loop. Also called phantom AL_PA.
See also AL_PA.
phantom device
A device that is not physically in an arbitrated-loop, but is logically included through the use of a phantom
address.
phantom domain
See xlate domain.
PID
Port identifier. See also core PID.
port
In an HP StorageWorks switch environment, an SFP or GBIC receptacle on a switch to which an optical
cable for another device is attached.
port address
In Fibre Channel technology, the port address is defined in hexadecimal. In the HP StorageWorks Fabric
OS, a port address can be defined by a domain and port number combination or by area number. In an
ESCON Director, the port address is an address used to specify port connectivity parameters and to assign
link addresses for attached channels and control units.
port log
A record of all activity on a switch, kept in volatile memory.