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Solaris 9 Sun Hardware Platform Guide

Chapter 5 Power Management on Sun Hardware

The United States Environmental Protection Agency has the Energy Star® guidelines for computer products to encourage the use of energy-efficient computer systems and to reduce air pollution associated with energy generation.

To meet these guidelines, Sun Microsystems, Inc. designs hardware to use power efficiently; also, it provides Power Management(TM) software with which to configure the power management settings. In order to reduce power consumption, your Sun workstation and devices are capable of entering a lower-power state when they have been inactive for a period of time.

This section supplements the Using Power Management manual in the Solaris 8 User Collection.

Supported Platforms and System Distinctions

Power Management software supports the sun4m and sun4u platform groups. Software features and defaults may vary between the two platform groups. Refer to Using Power Management in the Solaris 8 User AnswerBook set for more information when you identify the platform group that applies to your system.

Note -

Power Management does not support the sun4c and sun4d platform groups.

Table 5-1 Platform Names and Groups Supported by Power Management

Sun System Name 

Platform Name 

Platform Group 

SPARCstation 4 

SUNW, SPARCstation-4 

sun4m 

SPARCstation 5 

SUNW, SPARCstation-5 

sun4m 

SPARCstation 10 

SUNW, SPARCstation-10 

sun4m 

SPARCstation 10SX 

SUNW, SPARCstation-10, SX 

sun4m 

SPARCstation 20 

SUNW, SPARCstation-20 

sun4m 

SPARCstation LX 

SUNW, SPARCstation-LX 

sun4m 

SPARCstation LX+ 

SUNW, SPARCstation-LX+ 

sun4m 

SPARCclassic 

SUNW, SPARCclassic 

sun4m 

SPARCclassic X 

SUNW, SPARCclassic-X 

sun4m 

Ultra 1 (all models) 

SUNW, Ultra-1 

sun4u 

Ultra 5 

SUNW, Ultra-5 

sun4u 

Ultra 10 

SUNW, Ultra-10 

sun4u 

Ultra 30 

SUNW, Ultra-30 

sun4u 

Ultra 60 

SUNW, Ultra-60 

sun4u 

Ultra 450 

SUNW, Ultra-4 

sun4u 

Ultra 2 Creator (all models) 

SUNW, Ultra-2 

sun4u 

Sun Enterprise 1 Model 140 

SUNW, Ultra-1 

sun4u 

Sun Enterprise 1 Model 170 

SUNW, Ultra-1 

sun4u 

Sun Enterprise 1 Model 170E 

SUNW, Ultra-1 

sun4u 

Sun Enterprise 2 Model 1300 

SUNW, Ultra-2 

sun4u 

Sun Enterprise 2 Model 2300 

SUNW, Ultra-2 

sun4u 

Note -

The SPARCstationTM Voyager is a sun4m-architecture system, but it is not supported in this Solaris release.

System Architecture Distinctions and Default Settings

The SPARC architecture of a workstation determines which Power Management features are available. To determine your system's architecture, see Table 5-1. The default behavior in Power Management functions varies on systems, as described in Table 5-2.

Table 5-2 Power Management Features in Different SPARC Architectures

Power Management Features 

sun4m  

sun4u (Energy Star 2.0) 

sun4u (Energy Star 3.0) 

Servers 

Display PM Available 

Yes 

Yes 

Yes 

Yes 

Display PM by Default 

Yes 

Yes 

Yes 

Yes 

Device PM Available 

No 

No 

Yes 

No 

Device PM by Default 

N/A 

N/A 

Yes 

N/A 

Suspend-Resume Available 

Yes 

Yes 

Yes 

No 

Suspend-Resume by Default 

No 

Yes 

No 

N/A 

AutoShutDown Available 

No 

Yes 

Yes 

No 

AutoWakeup by Default 

N/A 

Yes 

No 

N/A 

SPARCstation 4 Issues

This section describes a workaround to a limitation of the SPARCstation 4 when used with Power Management.

The AC accessory outlet on the SPARCstation 4 system is an unswitched outlet. The AC power switch does not control power flowing through the accessory outlet. If you connect a monitor to the accessory outlet, you cannot turn it off using the system unit power switch. Similarly, if you use Power Management software, the software cannot turn off the monitor automatically. To conserve energy, consider using an Energy Star-compliant monitor. Sun offers a variety of Energy Star-compliant monitors in its standard SPARCstation 4 system configurations. This information does not apply to SPARCserver 4 configurations. The SPARCserver 4 includes a switched accessory outlet.