Specifications

Glossary
961Fabric OS Version 3.1.x/4.1.x Reference Guide
Host
A computer that accesses storage devices over the fabric. May also be referred to as a server.
See also workstation.
Hot Pluggable
A FRU capability that indicates it may be extracted or installed while customer data is otherwise
flowing in the chassis.
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.
IBTA
The InfiniBand Trade Association (IBTA). The IBTA is an industry consortium of more than 200
companies working together to develop a new common I/O specification designed to bring greater
scalability and performance to server I/O. InfiniBand defines a new channel based, switched-fabric
technology for server-to-server and server-to-I/O interconnection that is expected to improve
scalability and performance over existing PCI Bus technologies.
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.
InfiniBand
See IBTA.
Initiator
A server or workstation on a Fibre Channel network that initiates communications with storage
devices.
See also Target.
Integrated Fabric
The fabric created by a SAN Switch Integrated/32 and SAN Switch Integrated/64, consisting of six
SAN Switch 16-EL switches cabled together and configured to handle traffic as a seamless group.
IOD
In-order Delivery. A parameter that, when set, guarantees that frames are either delivered in order
or dropped.
IPA
Initial Process Associator. An identifier associated with a process at an N_Port.