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log in with each other and the switch to exchange operating information on attributes
and characteristics. This information includes port names and port IDs and is used to
establish interoperability parameters.
FICON
An ESA/390
®
computer peripheral interface.
File Backup
The practice of copying a file that is stored on disk or tape to another disk or tape is
referred to as file backup. This is done for protection in case the active file gets
damaged. Backup is considered “local copy” as opposed to “remote copy.” See also
Remote Copy.
Front End
In reference to storage arrays, the front end is considered to be the interfaces or ports
to the “real world,” the processors servicing these ports, and in some cases the cache
memory. On the Lightning 9900
™
Series systems, the front end consists of CHIP pairs.
Gigabit Ethernet
Provides a standard that supports data transfer at 1000 megabits/sec. Gigabit Ethernet
is also called 1000BaseT Category 5 (copper wire) or 1000BaseX (fiber optic). There is
a 10,000BaseT version of the Ethernet standard that will be widely available by 2002.
Gigabyte
Technically, a gigabyte is 1024 Megabytes although most disk drive manufacturers
today define it as 1000MB. This is a source of great confusion in the storage industry.
GUI
GUI is an acronym that refers to a Graphical User Interface that is the software that
controls the screen presented to a user in a computer application.
HARBOR File Level Backup/Recovery with Lightning
™
9900 Agent
™
Harbor File Level Backup/Recovery is a software utility that provides for network or
channel-based backup/restore of open systems client files to an OS/390
®
host using a
common graphical user interface. Online, non-disruptive backup/recovery of popular
database, mail and Enterprise Resource Planning (ERP) applications are optional.
Client support is available for Windows
®
, OS/2
®
, UNIX
®
, NetWare
™
, and VMS host
platforms. High-speed data transfer is also available using Hitachi RapidXchange
™
and
other channel-based technologies.
HARBOR File Transfer
This software utility provides automatic, reliable, and secure data transfer between
OS/390
®
and open systems hosts using high speed ESCON
®
/ FICON
™
channels or
network communications. HFT can be thought of as a very high speed FTP that does
not use a network. High performance is enabled by allowing multiple file transfers to
Hitachi Data Systems
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