Dell 720N, 740N Iodvkphpru, Irupdw, Jurxs, Judsklfvfrsurfhvvru, Judsklfvprgh, Jxduglqj, Khdwvlqn

IODVK￿PHPRU\

A type of EEPROM chip that can be re- programmed from a utility on diskette while still installed in a computer; most EEPROM chips can only be rewritten with special programming equipment.

IRUPDW

To prepare a hard-disk drive or diskette for storing files. An unconditional format de- letes all data stored on the disk. The format command in MS-DOS 5.0 or higher includes an option that allows you to unfor- mat a disk, if you have not yet used the disk for file storage.

IW

Abbreviation for feet.

)73

Abbreviation for file transport protocol.

J

Abbreviation for gram(s).

*

Abbreviation for gravities.

*%

Abbreviation for gigabyte(s). A gigabyte equals 1,024 megabytes or 1,073,741,824 bytes.

*,'

Group identification number.

JURXS

A group of users defined in the filer’s /etc/group file.

JUDSKLFV￿FRSURFHVVRU

See coprocessor.

JUDSKLFV￿PRGH

See video mode.

JXDUGLQJ

A type of data redundancy that uses a set of physical drives to store data and a sin- gle, additional drive to store parity data.

Using guarding, the user’s data is protect- ed from the loss of a single drive. Guarding is sometimes preferred over mirroring because it is more cost effective

in systems with a very high storage capac- ity. However, guarded configurations are significantly slower for applications that frequently write to the array, because each attempt to write to the array requires multiple read and write commands to maintain the parity information. If this is a problem, mirroring or duplexing is a better choice. See also mirroring, RAID 4, and RAID 5.

*8,

Acronym for graphical user interface.

K

Abbreviation for hexadecimal. A base-16 numbering system, often used in pro- gramming to identify addresses in the computer’s RAM and I/O memory ad- dresses for devices. The sequence of decimal numbers from 0 through 16, for example, is expressed in hexadecimal no- tation as: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 10. In text, hexadecimal num- bers are often followed by h or preceded by 0x. MS-DOS conventional memory—the first 640 KB of memory addresses—is from 00000h to 9FFFFh; the MS-DOS upper memory area—memory addresses be- tween 640 KB and 1 MB—is from A0000h to FFFFFh.

KHDW￿VLQN

A metal plate with metal pegs or ribs that help dissipate heat. Some micro- processors include a heat sink.

+0$

Abbreviation for high memory area. The first 64 KB of extended memory above

1MB. A memory manager that conforms to the XMS can make the HMA a direct extension of conventional memory. See also conventional memory, memory manager, upper memory area, and XMM.

+,3

Acronym for the Dell OpenManage Hard- ware Instrumentation Package. HIP provides seamless integration with the In- tel LANDesk Server Manager. Together, HIP and LANDesk Server Manager allow you to monitor your Dell servers and track status information about Dell server components.

8Dell PowerVault 720N, 740N, and 760N User’s Guide