IBM SAN32M1, Installation And Service Manual

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553 Glossary
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 .
hub
(1) In Fibre Channel protocol, a device that connects nodes into a log-
ical loop by using a physical star topology. (2) In Ethernet, a device
used to connect the EFC Server and the directors it manages.
hyperlink A predefined link for jumping from one location to another, within
the same computer or network site or even to a location at a com-
pletely different physical location. Commonly used on the world
wide web for navigation, reference, and depth where published text
will not suffice.
hypertext transport
protocol
HTTP. A simple protocol that allows world wide web pages to be
transferred quickly between web browsers and servers.
Hz See Hertz .
I
ID See identifier .
identifier ID. (1) One or more characters used to identify or name a data ele-
ment and possibly to indicate certain properties of that data element
(D, T). (2) A sequence of bits or characters that identifies a program,
device, or system to another program, device, or system. See also
port
name .
IEEE See Institute of Electrical and Electronics Engineers .
IML See initial machine load .