Spectra Logic Spectra nTier300, Installation Manual

Page: 78 / 88

Glossary of Terms – H
78
H
HBA Acronym for Host Bus Adapter.
HSM
Hierarchical storage management. The automatic movement of files
from disk-based storage to slower, less-expensive storage media. A
typical hierarchy is from high-performance disk-based storage to tape-
based storage. HSM software constantly monitors disk capacity and
moves data from one storage level to the next based on age, category
and other criteria as specified by the network or system administrator.
HSM often includes a system for routine backup as well.
host
The computer or computers to which the nTier300 VTL is connected.
Host Bus Adaptor
A device that connects one or more peripheral units to a computer. It is
typically an expansion card that plugs into the bus.
hot swappable
The ability of a component to be removed and replaced while the RAID
array remains powered on and operational.
HTML
HyperText Markup Language. The document format used on the web.
Web pages are built with HTML tags (codes) embedded in the text.
HTML defines the page layout, fonts, and graphic elements as well as
the hypertext links to other documents on the web.
HTTP HyperText Transfer Protocol. The communications protocol used to
connect to servers on the web. Its primary function is to establish a
connection with a web server and transmit HTML pages to the client
browser or any other files required by an HTTP application.
I
IP
Internet Protocol. The method or protocol by which data is sent from
one computer to another on the Internet. Each computer (known as a
host) on the Internet has at least one IP address that uniquely identifies
it from all other computers on the Internet. See also
TCP/IP .
IP address
An IP designation that the nTier300 uses when accessed remotely over
the internet or an intranet.
I/O
Input/output.