Ethernet Adapter Installation and Support Guide

Introduction to the Ethernet 4 ServerNet Adapter
(E4SA)
Ethernet Adapter Installation and Support Guide—425684-003
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Power Interface
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Initializing the adapter for access to or from the ServerNet
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Controlling the adapter’s standard LEDs
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A serial EEPROM (SEEROM) that provides the following:
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Hardware identification (part number and revision)
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Manufacturing tracking (serial) number
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MAC addresses
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CRU visual indicators
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Power control to the E4SA
Power Interface
The E4SA 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
E4SAs 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
each 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 each 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 E4SA through the SLSA Subsystem
The SLSA subsystem provides access to the E4SA. The following subsystems and
utilities may be configured to access an E4SA 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
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....