Special Procedures; Disabling Power Management - Sun Microsystems Sun Blade 150 Service Manual

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A P P E N D I X

Special Procedures

This appendix provides a functional description of the Sun Blade 150 system.
Section D.1, "Disabling Power Management" on page D-1
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Section D.2, "Setting the Default Console Display" on page D-2
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D.1

Disabling Power Management

This section describes how to disable hard drive power management and system
power management.
D.1.1 Disabling Hard Drive Power Management
When the system is in low-power mode, the hard drive eventually stops rotating to
conserve power. Later, when you perform a task that accesses the hard drive, the
hard drive spins up again. You might have to wait a few seconds for the hard drive
to spin up to full speed.
If you find that the delay is inconvenient, you can turn off Energy Star hard drive
power management to prevent the hard drive from entering the low-power mode.
1. Become superuser.
a. Using any file editor, type the following line in your /etc/power.conf file:
device-thresholds
b. Save the /etc/power.conf file.
2. Run the command:
/usr/sbin/pmconfig
/dev/dsk/c0t0d0s0 always-on
D-1