Glossary
179
RAID —
Redundant array of independent disks. A method of providing data
redundancy. Some common implementations of RAID include RAID 0, RAID 1, RAID
5, RAID 10, and RAID 50. See also guarding, mirroring, and striping.
RAM —
Random-access memory. The system’s primary temporary storage area for
program instructions and data. Any information stored in RAM is lost when you turn
off your system.
RAS —
Remote Access Service. This service allows users running the Windows
operating system to remotely access a network from their system using a modem.
RE AD M E
F I L E
—
A text file, usually shipped with software or hardware, that contains
information supplementing or updating the product’s documentation.
RE AD
-
O N L Y
F I L E
—
A read-only file is one that you are prohibited from editing or
deleting.
ROM —
Read-only memory. Your system contains some programs essential to its
operation in ROM code. A ROM chip retains its contents even after you turn off your
system. Examples of code in ROM include the program that initiates your system’s
boot routine and the POST.
ROMB —
RAID on motherboard.
RP M
—
Revolutions per minute.
RTC —
Real-time clock.
SAS —
Serial-attached SCSI.
SATA —
Serial Advanced Technology Attachment. A standard interface between the
system board and storage devices.
SCSI —
Small computer system interface. An I/O bus interface with faster data
transmission rates than standard ports.
SDRAM —
Synchronous dynamic random-access memory.
SE C
—
Second(s).
SE R I AL
P O RT
—
An I/O port used most often to connect a modem to your system.
You can usually identify a serial port on your system by its 9-pin connector.
SE R V I CE
T A G
—
A bar code label on the system used to identify it when you call Dell
for technical support.
SI MP LE
D I S K
VOL U M E
—
The volume of free space on a single dynamic, physical
disk.
SMART —
Self-Monitoring Analysis and Reporting Technology. Allows hard drives
to report errors and failures to the system BIOS and then display an error message on
the screen.
Содержание PowerEdge R900
Страница 1: ...Dell PowerEdge R900 Systems Hardware Owner s Manual ...
Страница 10: ...10 Contents Glossary 171 ...
Страница 40: ...40 About Your System ...
Страница 56: ...56 Using the System Setup Program ...
Страница 81: ...Installing System Components 81 Figure 3 11 2 5 Inch SAS SAS RAID Cabling 10 7 6 5 8 9 2 1 4 3 ...
Страница 83: ...Installing System Components 83 Figure 3 12 3 5 Inch SAS SAS RAID Cabling 8 4 2 5 6 3 7 1 9 10 ...
Страница 126: ...126 Installing System Components ...
Страница 164: ...164 Jumpers and Connectors ...
Страница 190: ...190 Index ...