Dell PowerEdge R900 Hardware Owner's Manual (PDF) - Page 179

SDRAM, SMART, Serial Advanced Technology Attachment. A standard interface between

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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. R E A D - 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. SCS I - Small computer system interface. An I/O bus interface with faster data transmission rates than standard ports. SDR AM - 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. S I M P L E D I S K V O L U M E - The volume of free space on a single dynamic, physical disk. SMAR T - 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. Glossary 179

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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.
README
FILE
—
A text file, usually shipped with software or hardware, that contains
information supplementing or updating the product’s documentation.
READ
-
ONLY
FILE
—
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.
RPM
—
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.
SEC
—
Second(s).
SERIAL
PORT
—
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.
SERVICE
TAG
—
A bar code label on the system used to identify it when you call Dell
for technical support.
SIMPLE
DISK
VOLUME
—
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.