McDATA Sphereon 4500 User Manual

Page 198

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McDATA® Sphereon™ 4500 Fabric Switch Product Manager User Manual

Glossary

GUI

Graphical User Interface.

Gx_Port

A configurable port type that restricts a port to operate either as an
F_Port, FL_Port, or E_Port.

H

hardware log

Record of FRU insertions and removals in the switch.

hardware

management console

The console runs the Hardware Management Console application
(HWMCA), and is the operations and management PC platform for
S/390 and zSeries servers.

HBA

See host bus adapter.

heterogeneous fabric

A fabric with both McDATA and non-McDATA products.

homogeneous fabric

A fabric consisting of only McDATA products.

hop count

The number of hops a unit of information traverses in a fabric.

hexadecimal

A number system with a base of 16.

high availability

A performance feature characterized by hardware component
redundancy and hot-swappability (enabling non-disruptive
maintenance). High-availability systems maximize system uptime
while providing superior reliability, availability, and serviceability.

hop

Data transfer from one node to another node.

hop count

ISL connections.

host bus adapter

Logic card that provides a link between the server and storage
subsystem, and that integrates the operating systems and I/O
protocols to ensure interoperability.

hot-swapping

Removing and replacing a device’s components while the device
continues to operate normally.

hub

In Fibre Channel, a device that connects nodes into a logical loop by
using a physical star topology.

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