C H A P T E R  1


This chapter contains a description of the Netra 240 server and provides the installation site requirements. The chapter contains the following sections:


The Netra 240 server is a two rack unit (RU) server with one or two processors.

FIGURE 1-1 Netra 240 Server

Figure showing the Netra 240 server.

The Netra 240 server uses either one or two UltraSPARC® IIIi processors. The server depth enables mounting in standard rack depths of 24 inch, 600 mm, or deeper.

Storage is provided by two hot-swappable disk drives, together with an optional non-hot-swappable slimline DVD-RW or DVD-ROM drive. Built-in I/O functionality is provided by four Gigabit Ethernet channels, and two SCSI channels (one for external and one for internal use). Two independent open host controller interface (OHCI) USB hubs are also provided. I/O expansion is provided with one full-length PCI card slot supporting both 33MHz and 66MHz cards, and two half-length PCI card slots supporting 33MHz cards. A dry contact relay alarm card for remote management control (RMC) firmware and an alarm status LEDs card are provided.


The Netra 240 server has these features:

Standard Server Configurations

The Netra 240 server standard configurations are listed in TABLE 1-1.

TABLE 1-1 Netra 240 Server Standard Configurations

Number of Processors


Number of Hard Drives

Number of Power Supply Units (PSUs)


1 GB




2 GB



Note - For more information about standard configurations, and to see a list of optional components, refer to the SunStoreSM web site (http://store.sun.com).

Number of DC-Powered Servers Permitted in the Same Rack

If you have more than six DC-powered Netra 240 servers in the same rack, you may exceed Telcordia NEBS EMI limits. For instructions on mounting the server into a rack, refer to Chapter 3.

Shipment Contents

The Netra 240 server ships with the components listed in TABLE 1-2. Make sure that all the parts are present in the shipment. If any components are missing, contact your Sun sales representative.

TABLE 1-2 Contents of the Netra 240 Server Shipment



M5 nut kit


RJ-45 to DB-9 adapter


RJ-45 to DB-25 adapter


WAGO DC connector assembly kit (DC server only)


19-inch, 4-post rackmount kit


Sun Netra 240 Server Quick Start Guide


Sun Netra 240 Server Product Documentation


Binary Code Licenses


Important Safety Information for Sun Hardware Systems


Note - The WAGO DC connector assembly kit is for the DC-powered server only. If you have an AC-powered server, please dispose of this DC connector kit.

Sun Advanced Lights Out Manager

The Netra 240 server ships with the Sun Advanced Lights Out Manager (ALOM) software preinstalled. By default, the system console is directed to ALOM and is configured to show server console information on startup.

ALOM enables you to monitor and control your server over either a serial connection (using the SERIAL MGT port), or Ethernet connection (using the NET MGT port). See Connecting the Data Cables for the location of these and other ports. For information about configuring an ALOM Ethernet connection, refer to the Sun Advanced Lights Out Manager User Guide for the Netra 240 Server

Note - The ALOM serial port, labelled SERIAL MGT, is for server management only. If you need a general purpose serial port, use the serial port labeled 10101. See Rear Cable Connections for the location of these serial ports.

ALOM can be configured to send email notifications of hardware failures and other events related to the server or to ALOM.

The ALOM circuitry uses standby power from the server, which means:

TABLE 1-3 lists the components monitored by ALOM and describes the information provided for each component.

TABLE 1-3 ALOM Component Monitoring


Status Monitored

Hard drives

Presence and status


Speed and status


Presence, temperature, and any thermal warning or failure conditions

Power supplies

Presence and status

System temperature

Ambient temperature and any thermal warning or failure conditions

Server front panel

Rotary switch position and LED status


Status and thresholds

SCSI and USB circuit breakers


Dry contact alarm

LED status

Refer to the Sun Advanced Lights Out Manager User Guide for the Netra 240 Server
(817-3174) and the Netra 240 Server Release Notes (817-3142) for additional information about the ALOM software.

Sun Install Check Tool

The Netra 240 server supports the Sun Install Check tool, which can confirm that your server has been installed successfully. The Install Check software checks the initial server installation and tests your server for:

If potential issues are identified, the software generates a report with specific instructions to remedy the issues.

You can download the Sun Install Check tool software and documentation at:


Sun Remote Services Net Connect Support

The Netra 240 server supports the Sun Remote Services (SRS) Net Connect monitoring services. The SRS Net Connect web services give you the ability to self-monitor systems, create performance and trend reports, and receive automatic notifications, so you can act more quickly when a system event occurs and manage potential issues before they become problems.

For more information about SRS Net Connect, including how to sign up and download the documentation, refer to the SRS Net Connect web site at:


Note - The Net Connect Installation Guide contains installation instructions specific to the Netra 240 server. This guide can be downloaded after signing up for the service.

Installation Site Requirements

This section provides the specifications and site requirements you may need when planning the installation of the Netra 240 server. For safety and compliance information, refer to the Netra 240 Safety and Compliance Manual (817-3511).

Physical Dimensions

TABLE 1-4 Physical Dimensions

Netra 240 Server Dimensions


Height (2 RU)

3.44 inches (87.4 mm)

Width without bezel

16.73 inches (425 mm)

Width with bezel

17.4 inches (442 mm)

Depth from front bezel to system board connectors

19.0 inches (483 mm)

Depth to rear of power supply unit handle

20.06 inches (509.5 mm)

Weight with full configuration (not including PCI cards and mounting brackets)

36 lbs (16.33 kg)

Weight with full configuration (including PCI cards and mounting brackets)

41 lbs (18.6 kg)

Environmental Requirements

You can operate and store the system safely in the conditions detailed in TABLE 1-5.

TABLE 1-5 DC and AC Server Operating and Storage Specifications




Ambient temperature

5°C (41°F) to 40°C (104°F)

Short term[1]:
-5°C (23°F) to 55°C (131°F)

-40°C (-40°F) to 70°C (158°F)

Relative humidity

5% to 85% relative humidity, noncondensing

Short term*: 5% to 90% relative humidity, noncondensing, but not to exceed
0.024 kg water/kg dry air
(0.053 lbs. water/2.205 lb. dry air)

Up to 93% relative humidity noncondensing,
38°C (100.4°F) max wet bulb


Up to 3000 m (9842.4 ft.)

Up to 12000 m (39369.6 ft.)

Recommended Operating Environment

Your environmental control system must provide intake air for the server which complies with the limits specified in Environmental Requirements.

To avoid overheating, do not direct warmed air:

Note - When you receive your system, place it in the environment in which you will install it. Leave it in its shipping crate at its final destination for 24 hours. This resting period prevents thermal shock and condensation.

The system has been tested to meet all functional requirements when operating in the operating environmental limits in TABLE 1-5. Operating computer equipment in extremes of temperature or humidity increases the failure rate of hardware components. To minimize the chance of component failure, use the server within the optimal temperature and humidity ranges.

Ambient Temperature

An ambient temperature range of 21°C (69.8°F) to 23°C (73.4°F) is optimal for system reliability. At 22°C (71.6°F) it is easy to maintain safe relative humidity levels. Operating in this temperature range provides a buffer if the environmental support systems fail.

Ambient Relative Humidity

Ambient relative humidity levels between 45% and 50% are the most suitable for data processing operations in order to:

Electrostatic discharge (ESD) is easily generated and less easily dissipated in areas where the relative humidity is below 35%, and becomes critical when levels drop below 30%.

Airflow Considerations

The Netra 240 server uses internal blowers that can achieve a total airflow of
1.42 m3/min (50 CFM) in normal operating conditions.

Note - The combination of inlet and exhaust restrictions such as cabinet doors and the spacing of the server from the doors can affect the cooling performance of the system and should be evaluated by the user. The server placement is particularly important for high temperature NEBS environments where the server inlet ambient temperature is 55°C (131°F). (The DC-powered server is NEBS compliant.)

Acoustic Noise Emissions

The acoustic noise emissions on a Netra 240 server are as follows:

Declared noise emissions are in accordance with ISO 9296 standards.

Calculating Heat Dissipation

To calculate the heat generated by a server so that you can estimate the heat your cooling system must dissipate, convert the figure for the system's power requirement from Watts to BTU/hr. A general formula for doing this is to multiply the power requirement figure in Watts by 3.412.

NEBS Level 3 Certification

Telcordia certified that the DC-powered version of the Netra 240 server meets NEBS Level 3 requirements per SR-3580, including the appropriate sections of GR-63-CORE (Network Equipment-Building System Requirements: Physical Protection) and GR-1089-CORE (Electromagnetic Compatibility and Electrical Safety - Generic Criteria for Network Telecommunications Equipment).

caution icon Caution - To maintain NEBS compliance, the network management (NET MGT) Ethernet port and the RJ-45 serial management (SERIAL MGT) port must use shielded cables and both ends of the shield must be grounded. See Rear Cable Connectionsfor cabling information.

1 (TableFootnote) Short term (no more than 96 hours) temperature and humidity limits apply to servers with altitudes up to 1800 m (5905.44 ft.).