Sun Microsystems Fire X4540, Руководство администратора

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Glossary 127
gigabyte (GB or
Gbyte) One gigabyte is equal to one billion bytes.
graphical user interface
(GUI) A software interface that enables configuration and administration of the Sun
Fire X4540 Server using a graphic application.
H
host bus adapter
(HBA) An adapter that resides on the host.
hot spare A drive in a RAID 1 or RAID 5 configuration that contains no data and acts as
a standby in case another drive fails.
hot-pluggable Allows a component to be added, upgraded, or replaced while the system is
running without affecting hardware integrity.
hot-swappable The ability of a field-replaceable unit (FRU) to be removed and replaced while
the system remains powered on and operational.
I
input/output operations
per second (IOPS) A performance measurement of the transaction rate.
Integrated Lights Out
Manager (ILOM) An integrated hardware, firmware, and software solution for in-chassis or in-
blade system management.
intelligent platform
management interface
(IPMI) A hardware-level interface specification that was designed primarily for out-
of-band management of server systems over a number of different physical
interconnects. The IPMI specification describes extensive abstractions
regarding sensors, enabling a management application running on the
operating system or in a remote system to comprehend the environmental
makeup of the system and to register with the system’s IPMI subsystem to
receive events. IPMI is compatible with management software from
heterogeneous vendors. IPMI functionality includes FRU inventory reporting,
system monitoring, logging, system recovery (including local and remote
system resets and power on and off capabilities), and alerting.