Open SCSI Integrator's Manual for NonStop S-Series Servers

Glossary
Open SCSI Integrator’s Manual for NonStop Servers—422988-002
Glossary-20
SE
SE. System engineer. See service provider.
SEB. See ServerNet expansion board (SEB)
.
serial maintenance bus (SMB). A bus that connects service processors (SPs) within an
enclosure to each other and to the customer-replaceable units (CRUs) in the group.
serial maintenance bus (SMB) domain. The set of enclosures, modules, field-replaceable
units (FRUs), and customer-replaceable units (CRUs) connected by a common serial
maintenance bus (SMB).
server. (1) An implementation of a system used as a stand-alone system or as a node in an
Expand network. (2) A combination of hardware and software designed to provide
services in response to requests received from clients across a network. For example,
HP NonStop servers provide transaction processing, database access, and other services.
(3) A process or program that provides services to a client or a requester. Servers are
designed to receive request messages from clients or requesters; perform the desired
operations, such as database inquiries or updates, security verifications, numerical
calculations, or data routing to other computer systems; and return reply messages to the
clients or requesters. A server process is a running instance of a server program.
ServerNet adapter. A customer-replaceable unit (CRU) that connects peripheral devices to
the rest of the system through a ServerNet bus interface (SBI). A ServerNet adapter is
similar in function to an I/O controller logic board (LB) and backplane interconnect card
(BIC) in Himalaya K-series servers.
ServerNet address. A virtual memory address that, when translated to a physical address,
indicates where the memory access needed by a ServerNet transaction begins. In some
cases, the translation can point to some entity other than memory, such as a register. The
ServerNet address is included in all ServerNet read request and write request packets.
ServerNet addressable controller (SAC). A controller that is uniquely addressable within
one or more ServerNet address domains (SADs) through the node ID and address fields
in a request packet. A SAC is typically implemented on some portion of a processor
multifunction (PMF) customer-replaceable unit (CRU), an I/O multifunction (IOMF)
CRU, or a ServerNet adapter.
ServerNet buffer board (SBB). The board that provides the ServerNet connection to and
from the I/O multifunction (IOMF) customer-replaceable unit (CRU). This board
replaces the processor and memory board (PMB) in the IOMF CRU.
ServerNet bus interface (SBI). The I/O control and expansion packetizer
application-specific integrated circuit (ASIC).
ServerNet cable. A cable that provides ServerNet links between system enclosures.
ServerNet/DA. See ServerNet device adapter (ServerNet/DA)
.
ServerNet device adapter (ServerNet/DA). A ServerNet adapter that controls external disk
or tape drives installed in a modular storage subsystem. The 6760 ServerNet/DA