OSM Service Connection User's Guide (G06.30+)

A network topology in which all nodes are connected to a central hub (HP NonStop
Cluster Switch). Each node has its own connection to the network, so a break in the
connection does not affect other nodes in the network. In a ServerNet cluster, a star
topology requires one cluster switch for each external fabric and can support up to eight
nodes.
See also split-star topology, and tri-star topology, and layered topology.
status/console message
A message that keeps the user informed about the status of the requested action.
subnetwork
A physical network within an internet protocol (IP) network. Each IP network can be
divided into a number of subnetworks. Within a given network, each subnetwork is
treated as a separate network. Outside that network, the subnetworks appear as part of a
single network. The terms subnetwork and subnet are used interchangeably.
subnetwork address
An extension of the internet protocol (IP) addressing scheme that allows a site to use a
single IP address for multiple physical networks. A subnetwork address is created by
dividing the local part of an IP address into a subnetwork number (identifying a particular
subnetwork) and a host number (uniquely identifying the host system within the
subnetwork). The terms subnetwork and subnet are used interchangeably.
Subsystem Control Facility (SCF)
An interactive interface for configuring, controlling, and collecting information from its
subsystems.
super group
The group of user IDs that have group number 255. This group has special privileges.
Many NonStop operating system utilities contain commands or functions that can be
executed only by a member of the super group.
super ID
A privileged user in the NonStop operating system environment who can read, write,
execute, and purge all files on the system. The super ID has the user ID 255,255.
synchronous
A mode of data communications transmission in which characters are accumulated in a
buffer at the sending terminal and then sent as a block of data. Synchronous transmission
normally uses external clocking provided by a synchronous modem. The clocking
scheme assumes that once transmission starts, characters arrive in a block at a
predetermined speed. Contrast with asynchronous.
SYSnn subvolume