I-Bus 0818D, User Manual

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Appendix 2 – Glossary of Terms
0818D User’s Guide A2-4
information. If one disk fails in a RAID array, the unit continues to
function without loss of data.
RAM (Random Access Memory): The memory used to execute
applications while your computer is turned ON. When you turn your
computer OFF, all data stored in RAM is lost.
real-time clock (RTC): A periodic interrupt used to derive local time.
reset switch: Button or key that reboots the computer. All current
activities are stopped and any data in memory is lost.
S
SCSI (Small Computer System Interface): A high speed, general
purpose interface to storage devices.
SDR (Sensor Data Record): A record of data about a sensor. The
full description of the contents of these records can be found in IPMI,
version 1.0, section 28.1.
SEL (System Event Log) : A non-volatile storage area and
associated interfaces for storing system platform event information
for later retrieval.
serial port: A two-channel port, one channel used for ”In”
transmissions and one for ”Out” transmissions.
W
watchdog timer: A device that monitors CPU activity and resets the
CPU when no activity is detected for a user specified period.