SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

SNDA See ServerNet device adapter (ServerNet/DA).
state In SCF, one of the generally defined possible conditions of an object with respect to the
management of that object. Examples of states are DEFINED, STARTED, and STOPPED.
Storage
Management
Foundation (SMF)
A subsystem used by the storage subsystem that facilitates automation of storage management
tasks by providing location-independent naming, storage pools, and virtual disks on HP NonStop
S-series systems.
storage subsystem A subsystem of the HP NonStop operating system that handles configuration and management
of disk and tape devices in G-series RVUs.
storage subsystem
manager process
The generic process that starts and manages disk and tape drives. The $ZZSTO storage subsystem
manager process is started and managed by the $ZZKRN Kernel subsystem manager process
through the $ZPM persistence manager process.
SUB option In some Subsystem Control Facility (SCF) subsystems, the designation that the object name given
in a command stands not just for itself, but for the names of all objects at the next-lower level in
the hierarchy. The given object name can stand both for itself and for the subordinate objects,
or it can stand only for the subordinate objects, depending on the value of the SUB option.
subordinate
objects
In Subsystem Control Facility (SCF), objects that are logically subordinate to other objects. Some
subsystems are structured hierarchically, with objects of one type logically subordinate to (that
is, controlled by) an object of another type. For example, a number of subdevices can be
configured on a single line. Some SCF commands include a SUB option that refers to subordinate
objects.
substate Further information about the state of a device. The state and substate together provide information
about the current condition of a device or path to a device.
SUBSYS object
type
The Subsystem Control Facility (SCF) object type for most subsystems that use SCF as the user
interface.
subsystem A program or set of processes that manages a cohesive set of Subsystem Control Facility (SCF)
objects. Each subsystem has a manager through which applications can request services by
issuing commands defined by that subsystem. See also subsystem manager.
Subsystem Control
Facility (SCF)
An interactive interface for configuring, controlling, and collecting information from a subsystem
and its objects. SCF enables you to configure and reconfigure devices, processes, and some
system variables while your HP NonStop S-series server is online.
Subsystem Control
Point (SCP)
The message router for SCF. There can be several instances of this process. Using the Subsystem
Programmatic Interface (SPI), applications send each command for a subsystem to an instance
of the SCP process, which in turn sends the command to the manager process of the target
subsystem. SCP also processes a few commands itself. It provides security features, version
compatibility, support for tracing, and support for applications implemented as process pairs.
subsystem
manager
A process that performs configuration and management functions for a Subsystem Control Facility
(SCF) subsystem.
subvolume A group of related files stored on a disk; all the files have the same volume and subvolume name,
but each file has a unique file identifier.
summary report A brief informational listing of status or configuration information provided by the Subsystem
Control Facility (SCF) STATUS or INFO command. Contrast with detailed report.
super group The group of user IDs that have 255 as the group number. This group has special privileges;
many HP utilities have commands or functions that can be executed only by a member of the
super group.
super-group user A user who can read, write, execute, and purge most files on the system. Super-group users have
user IDs that have 255 as the group number.
SYSnn subvolume A subvolume on the $SYSTEM volume where the new version of the HP NonStop operating system
image is located. Also located on the SYSnn subvolume is system-dependent and RVU-dependent
software. nn is an octal number in the range %00 through %77.
system A node. All the processors, controllers, firmware, peripheral devices, software, and related
components that are directly connected together to form an entity that is managed by one HP
NonStop operating system image and operated as one computer.
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