SCF Reference Manual for the Storage Subsystem (G06.24+, H06.03+)

Glossary
SCF Reference Manual for the Storage Subsystem—529937-007
Glossary-6
HP Open System Management (OSM) product
HP Open System Management (OSM) product. See OSM.
HP Tandem Advanced Command Language (TACL). The user interface to the HP
NonStop Kernel operating system. The TACL product is both a command interpreter
and a command language. Users can write TACL programs that perform complex
tasks simply or provide a consistent user interface across independently programmed
applications.
input/output process (IOP). A running program (part of the HP NonStop operating system)
that manages the I/O functions for one or more ServerNet addressable controllers
(SACs) of the same type.
interactive mode. A mode of operation that is characterized by having the same input and
output device (a terminal or a process) for the session. If a terminal is used, a person
enters a command and presses Return. If a process is used, the system interface waits
for the process to send a request and treats the process in the same manner as a
terminal. Contrast with noninteractive mode.
Internal disk. A SCSI disk that resides in slots 1 through 18 of a NonStop S-series system
enclosure.
I/O adapter module (IOAM). A collection of modular components that provides I/O
connectivity and can include ServerNet switch boards, Fibre Channel ServerNet
adapters (FCSAs), Gigabit Ethernet 4-port ServerNet adapters (G4SAs), fans, and
power supplies. In the IOAM, each module is a logical entity that represents a single
service domain.
I/O cabinet. See I/O enclosure.
I/O enclosure. An HP NonStop S-series system enclosure containing exactly one module,
which includes ServerNet adapters, disk drives, components related to the ServerNet
fabrics, and components related to electrical power and cooling for the enclosure. An
I/O enclosure is identical to a processor enclosure, except that it contains I/O
multifunction (IOMF) customer-replaceable units (CRUs) instead of processor
multifunction (PMF) CRUs.
IOMF CRU. See I/O multifunction (IOMF) CRU.
IOMF 2 CRU. See I/O multifunction (IOMF) 2 CRU.
I/O multifunction (IOMF) CRU. (1) A HP NonStop S-series customer-replaceable unit
(CRU) that connects an I/O enclosure to a processor enclosure through a ServerNet
cable and supplies power to the components within the IOMF CRU as well as
redundantly to the disk drives, SCSI terminators, and ServerNet adapters in that
enclosure. The IOMF CRU contains a power supply, a service processor (SP), a
ServerNet router, an Ethernet controller, an external ServerNet port, and three SCSI
ServerNet addressable controllers (S-SACs) in a single unit. (2) A collective term for
both IOMF CRUs and IOMF 2 CRUs when a distinction between the two types of
CRUs is not required.