HP StorageWorks Fabric OS 5.X Command Reference Guide (AA-RVHVB-TE, September 2005)

Fabric OS 5.x command reference guide 807
header A Fibre Channel frame has a header and a payload. The header contains control and
addressing information associated with the frame.
hop count The number of ISLs a frame must traverse to get from its source to its destination.
host A computer system that provides end users with services like computation and storage access.
hot swappable A hot swappable component can be replaced under power.
HTTP Hypertext Transfer Protocol. The standard TCP/IP transfer protocol used on the World Wide
Web.
hub A Fibre Channel wiring concentrator that collapses a loop topology into a physical star
topology. Nodes are automatically added to the loop when active and removed when
inactive.
hunt group A number of N_Ports registered as a single Alias_ID so that the fabric can route a word to a
port that is not busy.
HW Hardware.
ID_ID Insistent domain ID. A parameter of the configure command in the HP Fabric OS.
idle Continuous transmission of an ordered set over a Fibre Channel link when no data is being
transmitted, to keep the link active and maintain bit, byte, and word synchronization.
iFCP Internet Fibre Channel Protocol. Supports Fibre Channel Layer 4 FCP-Over-TCP/IP. It is a
gateway-to-gateway protocol in which TCP/IP switching and routing components
enhance/replace Fibre Channel fabric.
IFL Interfabric link. A connection between a router and an edge fabric. Architecturally, these can
be of type EX_Port-to-E_Port or EX_Port-to-EX_Port.
in-band Transmission of management protocol over the Fibre Channel.
initiator A server or workstation on a Fibre Channel network that initiates communications with storage
devices. See also target.
Insistent Domain ID
Mode
Sets the domain ID of a switch as insistent, so that it remains the same over reboots, power
cycles, failovers, and fabric reconfigurations. This mode is required to support FICON® traffic.
integrated fabric The fabric created by an HP StorageWorks SAN Switch Integrated/64, consisting of six HP
StorageWorks 1 GB switches cabled together and configured to handle traffic seamlessly as a
group.
intercabinet A specification for copper cabling that allows up to 33-meter distances between cabinets.
intermix Allows any unused bandwidth in a Class 1 connection.
interswitch link See ISL.
IOD In-order delivery. A parameter that, when set, guarantees that frames are either delivered in
order or dropped.
IP Internet Protocol. The addressing part of TCP.
IPI Intelligent Peripheral Interface.
IQN iSCSI qualified name.
ISC Internet Software Consortium.