NonStop System Glossary

supports 32 segments of UC space concurrently with 32 segments of UL code space, so the implied
user library method is not needed in new or changed TNS applications.
import
To refer to a symbol definition from another loadfile. A loadfile imports a symbol definition when
it needs a data item or function having that symbolic name.
import control
The characteristic of a loadfile that determines from which other loadfiles it can import symbol
definitions. The programmer sets a loadfile’s import control at link time. That import control can
be localized, globalized, or semiglobalized. A loadfile’s import control governs the way the linker
and loader construct that loadfile’s searchList and affects the search only for symbols required by
that loadfile.
import library
A file that represents a dynamic-link library (DLL) and can substitute for it as input to the linker.
Import libraries facilitate linking on auxiliary platforms (that is, PCs) where it is inconvenient to
store the actual DLLs.
in-band control (IBC)
A symbol-based communications protocol for communicating management information across a
ServerNet link without interfering with any application traffic in the network. In ServerNet II
architecture, IBC traffic uses standard ServerNet packets. ServerNet I architecture uses the Illegal
Symbol variation of IBC, which uses a subset of the available symbols to convey control information
from one node to another. The symbol subset chosen is from the group of symbols that are not
used for passing data. These symbols are usually considered illegal or unused.
incident report
A report sent by the server software for OSM or TSM to the respective TSM or OSM Notification
Director. If remote notification (dial-out) is configured, the Notification Director forwards incident
reports to a service provider. The three types of incident reports are problem incident reports,
periodic incident reports, and software configuration incident reports.
incremental discovery
Discovery of a NonStop server when the client software for OSM or TSM has locally saved
information but where configuration changes have been made on the server since that information
was saved.
indicator lights
Two light-emitting diodes (LEDs) on a field-replaceable unit (FRU) or customer-replaceable unit
(CRU) that indicate the status of the unit. The red or amber indicator light is lit when the unit is not
working properly. During startup, this light can indicate that the unit is not yet functioning. The
green indicator light is lit when the unit has proper power applied. See also light-emitting diode
(LED).
inductive reactance
Resistance at a frequency that is caused by the inductance of a coil or circuit.
initial discovery
Discovery of a NonStop server with which the client software for OSM or TSM has had no prior
contact and for which the client software has no locally saved information.
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