Chapter 14: Glossary - Sun Microsystems Fire E2900 Manual

100BASE-T
Adapter
ASR
Controller
DIMM
DIMM group
Processor/memory module
Fast Ethernet
Fault resilience
Fault tolerance
FC-AL
I2C
High availability
Host-bus adapter
Hot-plug
Lights Out Management
February 2005

Chapter 14: Glossary

See Fast Ethernet.
A host bus adapter or interface which plugs into a PCI slot to provide
connectivity, i.e. to networks, storage, graphics or other I/O devices.
Automatic System Recovery. A RAS feature that initiates a system
reboot sequence that bypasses failed system components or a software
failure.
A microprocessor based device which is dedicated to a specific task,
esp. I/O and is embedded within a host-bus adapter or external (storage)
array. The term 'controller' is often used synonymously with 'host-bus
adapter.'
Dual in-line memory module. A memory unit that is available in a range
of capacities, such as 256 MB, 512 MB, or 1 GB.
A group of four DIMMs.
The basic component of processing capability for the Sun Fire E2900
server. Each module is comprised of exactly four UltraSPARC III
microprocessors, a variable amount of memory depending upon the
quantity and density of DIMMs selected, and the interconnect logic.
IEEE standard for 100-Mb/second Ethernet. This technology supports a
data transfer rate of 100 megabits per second over special grades of
twisted-pair wiring.
Capability of a system to mask many individual errors, but not all. This
approach generally requires redundancy of some components and
additional software. An example would be the dual path capability and
automatic failover for storage and networks. Another term for 'high
availability'.
Capability of a system to mask any individual point of failure. This type
of system is typically implemented with redundancy of components and
synchronization of clock signals to maintain each unit in 'lock step' with
its counterpart.
Fiber Channel arbitrated loop. A loop topology used with fiber.
A bus used for environmental monitoring.
Capability of a system to mask many individual points of failure or to
significantly compensate for them. This type of system is built upon
standard components with limited hardware and/or software
components to minimize the impact of failures. Generally, this type of
system is less costly than a fault tolerant system.
Please see Adapter.
A component that can be electrically safe to remove or add while the
system is still running. Typically, the system must be rebooted before the
hot-plug component is configured.
Please see Remote System Control.
Sun Confidential – Internal Use Only 79