HP NonStop G-Series - Manual (Page 287)

master service
processor (MSP) A type of service processor (SP) pair that provides the basic service processor functions as
well as centralized system functions such as a console port, a modem port for remote support
functions, and system-load control. The OSM system console communicates directly with the
MSPs on the server. The
enclosure containing processors 0 and 1 contains the MSP pair.
Media Interface
Connector (MIC) A type of head on a fiber-optic cable that has locking wings on the sides.
media access
control (MAC)
address A value in the medium access control sublayer of the IEEE/ISO/ANSI local area network (LAN)
architecture that uniquely identifies an individual station implementing a single point of physical
attachment to a LAN.
memory dump The contents of a processor's memory copied onto disk or magnetic tape for later analysis, as
produced in a tape dump operation. You should submit the memory dump to your service
provider.
microcode Any machine code or data that can run in a microprocessor. HP produces two types of microcode
for NonStop 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. For nonvolatile microcode, see
firmware . See also millicode
millicode RISC instructions that implement various TNS low-level functions such as exception handling,
real-time translation routines, and library routines that implement the TNS instruction set.
Millicode is functionally equivalent to TNS
microcode .
mirrored disk or
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. Each drive has the same volume name, but the name has a suffix to show which
drive is the primary (-P) and which is the mirror (-M).
See also volume .
modular cabinet A cabinet with an integrated standard 19-inch rack equipped with a power distribution unit
(PDU), doors, slides, brackets, castors, leveling pads, and optional side panels.
modular
ServerNet A ServerNet expansion board (SEB) that uses plug-in cards (PICs) to provide a choice of
connection media for routing ServerNet packets.
expansion board
(MSEB)
module Part of the group, module, slot naming convention for uniquely identifying the logical location
of a component within a system. A module is a subset of a
group , and it is usually contained
in an enclosure. A module contains one or more slots. A module can consist of components
sharing common interconnect, such as a backplane, or it can be a logical grouping of components
performing a particular function.
MSEB port A connector on modular ServerNet expansion boards (MSEBs) used for ServerNet links. An
MSEB has four fixed serial-copper ports and six
plug-in card (PIC) slots that accept a variety
of connection media. See also SEB port .
multifunction I/O
board (MFIOB) A ServerNet adapter that contains ServerNet addressable controllers (SACs) for SCSI and
Ethernet; a service processor ; a router with ServerNet links to the processor , to the two ServerNet
adapter slots, and to one of the ServerNet expansion board (SEB) slots; and connections to
the serial maintenance bus (SMB) , which connects components within the enclosure to the
service processor. The MFIOB is integrated into the I/O multifunction (IOMF2) CRU .
multilane link A communication link between HP NonStop Cluster Switches that can consist of multiple
ServerNet cables. Two-lane links and four-lane links are examples of multilane links.
multimode
fiber-optic (MMF)
ServerNet cable A fiber-optic cable that either allows more than one mode to propagate or supports propagation
of more than one mode of a given wavelength. MMF ServerNet cable typically supports shorter
transmission distances than
single-mode fiber-optic (SMF) ServerNet cable .
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