ATM Configuration and Management Manual

Glossary
ATM Configuration and Management Manual—522307-003
Glossary-5
EEPROM
EEPROM . See electrically erasable programmable read-only memory.
electrically erasable programmable read-only memory. A type of PROM that is
electrically reprogrammable in circuit but large chunks of it must be erased before new
data is programmed in. EEPROM is often referred to as flash PROM.
ELF. See extended link format (ELF).
EMS collector. An Event Management Service (EMS) process to which subsystems report
events.
enclosure. Similar to a cabinet in NonStop S-series systems. An enclosure can contain
components of a system or a peripheral. Base enclosures are placed on the floor and
can have other enclosures stacked on top of them. Stackable enclosures can be
placed on top of other enclosures. See also system enclosure and peripheral
enclosure.
error. A condition encountered when performing a command or other operation that causes
the command or operation to fail.
error number. For the SPI, a value that can be assigned to a return token or to the last field
of an error token to identify an error that occurred. SPI defines a small set of error
numbers, but most error numbers are defined by subsystems.
Ethernet. A LAN that uses the carrier sense multiple access with collision detection
(CSMA/CD) access method on a bus topology and is the basis for the IEEE 802.3
standard.
Ethernet 4-port ServerNet adapter (E4SA). A ServerNet adapter for Ethernet LANs that
contains four Ethernet ports.
Event Management Service (EMS). A DSM product that provides event collection, event
logging, and event distribution facilities. EMS provides different event descriptions for
interactive and programmatic interfaces, lets an operator or an application select
specific event-message data, and allows for flexible distribution of event messages
within a system or a network.
event message. Text intended for a system operator that describes a change in some
condition in the system or network, whether minor or serious. The change of condition
is called an event. Events can be operational errors, notifications of limits exceeded,
requests for actions needed, and so on. See also operator message.
Expand network. The HP NonStop™ Kernel operating system network that extends the
concept of fault-tolerant operation to networks of geographically distributed HP
NonStop S-series systems. If the network is properly designed, communication paths
are constantly available even if a single line failure or component failure occurs.