Fast Ethernet Adapter Installation and Support Guide

Introduction to the Fast Ethernet ServerNet Adapter
(FESA)
Fast Ethernet Adapter Installation and Support Guide—425685-003
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Power Interface
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Power control to the FESA
Power Interface
The FESA receives power through a shielded, high-density, metric connector module.
The connector module consists of two 72-pin blocks and a blade power block. The
connector module also provides attachments to the two SMBs and the two ServerNet
fabrics.
Relationship to the SLSA Subsystem
FESAs are configured and managed through the Subsystem Control Facility (SCF)
interface to the ServerNet LAN Systems Access (SLSA) subsystem. The SLSA
subsystem is preinstalled and preconfigured on NonStop S-series servers and is
started during the system-load sequence. During the system-load sequence, the
persistence manager ($ZPM) starts the primary and backup LAN Manager (LANMAN)
processes ($ZZLAN) in processors 0 and 1. The LANMAN process then starts the LAN
Monitor (LANMON) processes in each processor of the system and attempts to assign
the ServerNet addressable controller (SAC) on an FESA to a LANMON process. Each
LANMON process then initializes the SAC, physical interface (PIF), and the logical
interface (LIF) associated with the PIF. The LANMON process reports any state
transitions to other LANMON processes.
Refer to the LAN Configuration and Management Manual for information about the
SLSA subsystem.
Accessing an FESA through the SLSA Subsystem
The SLSA subsystem provides access to the FESA. The following subsystems and
utilities may be configured to access an FESA through the SLSA subsystem.
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The conventional TCP/IP, Parallel Library TCP/IP, and NonStop TCP/IPv6
subsystems, which can interface to the SLSA subsystem to provide connectivity to
TCP/IP networks. The following subsystems and utilities can be configured to
access conventional TCP/IP, Parallel Library TCP/IP, or NonStop TCP/IPv6
subsystems:
•
The Expand subsystem, which interfaces to the TCP/IP subsystem to provide
Expand-over-IP connections.
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Telserv and the File Transfer Protocol (FTP), which use the socket library to
establish remote connections through the TCP/IP subsystem.
•
Other HP subsystems, such as Remote Server Call (RSC), that can be
configured to establish connections through the TCP/IP subsystem.
Note. SCF commands issued to the LANMONs or the LANMAN will not be accepted while
processes are starting or if the backup LANMAN is taking over from the primary LANMAN. The
SLSA subsystem will return the following error message: SLSA process is busy....