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Using Power Management

Hardware Support for Power Management Features

Nearly all SPARC workstations can use Power Management software features to some extent. However, some features only work on certain types of hardware. Some default power states vary from one type of system to another.

The following sections describe what Power Management features are supported by your hardware, as well as the defaults that will be in effect when you first use this Solaris release with your hardware.

Note -

The Power Management features described in this manual are only provided in the SPARC Platform Edition of this Solaris release.

System Architecture Distinctions

The SPARC architecture of a workstation determines which Power Management features are available, as described in Table 1-1.

Table 1-1 Availability of Power Management Features in Different SPARC Architectures
 SPARC Architecture Display Power Management Suspend-Resume Power Off Under Software Control AutoWakeup
 sun4c Yes No No No
 sun4d Yes No No No
 sun4m Yes Yes  Yes No
 sun4u Yes Yes  Yes Yes

Note -

The SPARCstation Voyager is a sun4m-architecture system that has special Power Management features, which are described in Platform Notes: SPARCstation Voyager Software Guide.

Monitor Hardware Distinctions

Some monitors are capable of screen blanking, while others can also be placed in a power-saving mode through Power Management software.

Default Distinctions

The default behavior in Power Management functions varies on systems as described in this section.

Note -

If you have Sun Microsystems hardware that is not described by this manual, refer to the Sun Hardware Platform Guide for this Solaris release. It may contain additional information about Power management for your system.