Guardian Application Conversion Guide DCT Limits Extension Addendum

Guardian Application Conversion Guide DCT Limit Extension Addendum—527418-001
Glossary-1
Glossary
destination control table (DCT). The NonStop Kernel data structure that holds information
about every device and named process in the system. The DCT is composed of the
named resource list (NRL) and the process-pair list (PPL). The DCT is replicated in
each CPU.
logical device number (ldev). A device’s or named process’s index into the DCT (more
precisely, into the NRL). Each device or named process in the system has an ldev.
named resource list (NRL). A table that contains one entry for each device and named
resource in the system. An ldev is an NRL index.
process-pair list (PPL). A table that contains one entry for each process or process pair
associated with a named resource. For some devices, a single PPL entry is associated
with multiple NRL entries. For process pairs, a single PPL entry describes both
members of the pair.
RVU. See release version update (RVU).
release version update (RVU). A collection of compatible revisions of HP NonStop Kernel
operating system software products, identified by an RVU ID, and shipped and
supported as a unit. An RVU consists of the object modules, supporting files, and
documentation for the product revisions. An RVU also includes a set of documentation
for the overall RVU.