NonStop System Glossary

localization
The process of adapting computer interfaces, data, and documentation to the culturally accepted
way of presenting information in the culture. Sometimes referred to as L10N, derived from the 10
letters between the initial L and the final N of the word localization.
localized
The import-control characteristic of a loadfile that allows it to import symbols only from the loadfile
itself followed by the libraries in its libList, libraries that those libraries reexport, and from these,
any successions of reexported libraries. See also libList and searchList.
logic board (LB)
1. See cluster switch logic board.
2. A printed wiring assembly (PWA) on which computer circuits (chips and wiring) are mounted.
One type of logic board is a processor and memory board (PMB). Another type is a multifunction
I/O board (MFIOB).
logical device name
The name assigned to an I/O process during its configuration. Other processes use the logical
device name when issuing Guardian procedure calls to the I/O process.
logical device number (ldev)
For a device or named process, the index into the destination control table (DCT); or more precisely,
into the named resource list (NRL). Each device or named process in the system has an ldev.
logical disk volume
A hardware device or device pair that provides persistent, highly accessible storage for data on
a magnetic or optical medium.
logical interface (LIF)
A process that allows an application or another process to communicate with data communications
hardware.
logical memory unit (LMU)
A group of four memory units on a NonStop S-series processor and memory board. Memory on
a processor and memory board (PMB) is divided into two LMUs. One LMU contains memory units
in slots MS1 through MS4. The other LMU contains memory units in slots MS5 through MS8. An
LMU must have memory units installed either in all of its slots or in none of its slots. See also memory
unit.
logical network partitioning
A NonStop TCP/IPv6 feature that allows you to divide the system into separately addressed IP
subnetworks whereby applications have access only to a defined set of network interfaces (IP
addresses).
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