Filter
Top Products
Glossary–26 edge switch 2/16 service manual
Glossary
Hertz
Hz. A unit of frequency equal to one cycle per second.
heterogeneous fabric
A fabric containing open-fabric-compliant products from various vendors. Contrast with
homogeneous fabric.
hexadecimal
A numbering system with base of sixteen; valid numbers use the digits 0 through 9 and
characters A through F, where A represents 10 and F represents 15 (D).
high availability
A performance feature characterized by hardware component redundancy and concurrent
maintenance. High-availability systems maximize system uptime while providing superior
reliability, availability, and serviceability.
homogeneous fabric
A fabric consisting of only one vendor’s products. Contrast with heterogeneous fabric.
hop
(1) Data transfer from one node to another node. (2) Describes the number of switches that
handle a data frame from its origination point through it’s destination point.
hop count
The number of hops a unit of information traverses in a fabric.
host bus adapter
HBA. 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.
host processor
(1) A processor that controls all or part of a user application network (T). (2) In a network, the
processing unit in which resides the access method for the network (D).
hot pluggable
See concurrent maintenance.
hot spare
See field-replaceable unit.
hot swap
See concurrent maintenance.
hot-swapping
See concurrent maintenance.
HTTP
See hypertext transport protocol.