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

KB See kilobyte (KB).
Kernel subsystem In G-series RVUs, the subsystem for configuration and management of the Subsystem Control
Facility (SCF) subsystem managers that are generic processes, some system attributes, and the
ServerNet X and Y fabrics.
kilobyte (KB) A unit of measurement equal to 1024 bytes. See also gigabyte (GB), megabyte (MB), and terabyte
(TB).
LDEV Logical device. The HP term for a disk in the ESS.
load 1. To transfer the HP NonStop operating system image or a program from disk into a computer’s
memory so that the operating system or program can run.
2. To insert a tape into a tape drive, which prepares it for a tape operation (read or write).
logical unit number
(LUN)
The logical unit in the ESS that maps the LDEV onto a port. Specification of the port and LUN
specifies an LDEV.
M8xxx disk A model M8xxx Fibre Channel disk drive that resides in slots 1 through 14 of a Fibre Channel
disk module (FCDM) connected to FCSAs in an IOAM enclosure.
MB
See megabyte (MB).
Measure product A HP utility used to gauge system performance.
media changer See robot.
megabyte (MB) A unit of measurement equal to 1,048,576 bytes (1024 kilobytes). See also gigabyte (GB),
kilobyte (KB), and terabyte (TB).
microcode Any machine code or data that can run in a microprocessor. HP produces two types of microcode
for HP NonStop S-series systems: volatile and nonvolatile. Volatile microcode is loaded into the
volatile random-access memory (RAM) of some types of printed wiring assemblies (PWAs) and
is not retained in a host PWA when power to the PWA is interrupted.
mirrored volume A pair of identical disk drives that are used together as a single logical volume. One drive is
considered primary and the other is called the mirror. Each byte of data written to the primary
drive is also written to the mirror drive; if the primary drive fails, the mirror drive can continue
operations. See also volume.
modular ServerNet
expansion board
(MSEB)
A ServerNet expansion board (SEB) that uses plug-in cards (PICs) to provide a choice of connection
media for routing ServerNet packets. See also ServerNet expansion board (SEB).
module A set of components sharing a common interconnection, such as a backplane. A module is a
subset of a group, and it is usually contained in an enclosure. In a HP NonStop S-series server,
there is exactly one module in a group.
MON object type The Subsystem Control Facility (SCF) object type for the Storage Management Foundation (SMF)
Master Process. See also Storage Management Foundation (SMF).
MSEB See modular ServerNet expansion board (MSEB).
noninteractive
mode
A mode of operation that usually involves a command file (an EDIT file that contains a series of
commands). Contrast with interactive mode.
nonsensitive
command
A command that can be issued by any user or program that is allowed access to a subsystem—that
is, a command on which the subsystem imposes no further security restrictions. For SCF,
nonsensitive commands are those that cannot change the state or configuration of objects; most
of them are information commands. Contrast with sensitive command.
NonStop™
NS-series servers
See HP Integrity NonStop™ NS-series servers.
NonStop™
operating system
See HP NonStop™ operating system.
NonStop™ S-series
servers
See HP NonStop™ S-series servers.
OBEY file See command file.
368 Glossary