NonStop S-Series Hardware Installation and FastPath Guide (G06.25+)

Glossary
HP NonStop S-Series Hardware Installation and FastPath Guide—529443-001
Glossary-26
Distributed Systems Management (DSM)
Distributed Systems Management (DSM). A set of tools used to manage HP NonStop™
systems and Expand networks.
Distributed Systems Management/Software Configuration Manager (DSM/SCM). A
graphical user interface (GUI)-based program that installs new software and creates a
new HP NonStop™ operating system. DSM/SCM creates a new software revision and
activates the new software on the target system.
distribution subvolume (DSV). A subvolume containing program files for a particular
software product along with the release version update (RVU) document (softdoc) file
for that product. The format for a DSV name is Ynnnnrrr or Rnnnnrrr, where nnnn
is the software product number and rrr is the base version identifier (such as D20) or
software product revision (SPR) identifier (such as AAB).
DLC. See data link control (DLC).
DMA. See direct memory access (DMA).
DNS. See Domain Name System (DNS).
DNS server. A server that resolves hostnames to Internet protocol (IP) address mapping
queries. These queries originate from either client computers, which are known as
resolvers, or other Domain Name System (DNS) servers, which accounts for the
distributed nature of DNS. See also Network Information Service (NIS).
domain. (1) In the Internet, a part of the naming hierarchy. Syntactically, a domain name
consists of a sequence of names (labels) separated by periods (dots). (2) In an HP
NonStop™ S-series server, a pair of service processors, the associated router clouds,
and the attached replaceable units. (3) A set of objects over which control or ownership
is maintained. Types of domains include power domains and service processor (SP)
domains.
Domain Name System (DNS). A system that defines a hierarchical, yet distributed,
database of information about hosts on a network. A domain name is a meaningful and
easy-to-remember handle for an Internet address. The network administrator
configures the DNS with a list of hostnames and Internet protocol (IP) addresses,
allowing users of workstations that are configured to query the DNS to specify remote
systems by hostnames rather than by IP addresses. DNS domains should not be
confused with Windows NT networking domains. See also DNS server, Network
Information Service (NIS), and ping.
donor system. The computer system you make smaller by removing enclosures, either to
reduce the system or to add the removed enclosures to another target system, using a
process known as system reduction.
double-high stack. A stack that includes a base, a frame, and two HP NonStop™ S-series
system enclosures. Contrast with single-high stack.