Sun Microsystems 2000E - Manual (Page 18)

2-2 SPARCserver 2000E Power Supply Installation Manual—April 1995
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2.1 Operating System
The correct operating system must be installed to support dual power supply
operation. The operating system must be:
Solaris 2.4 or higher, or
Solaris 2.3 with the patch: ID# 101318-59 or later revision level (obtain this
patch through your normal service channels)
Check to see which operating system is running on your machine. If necessary,
load one of the correct Solaris versions listed here before proceeding.
2.2 Open Boot PROM
The system boards require the Open Boot PROM version -10 or higher to
support dual power supply operation. If necessary, install new PROMs on all
system boards before proceeding.
2.3 Powering Down the System
Halt the operating system before turning off system power. Proceed below.
1. Notify users that the system is going down.
2. Be sure that the system files and data have been backed up.
3. Halt the system using the appropriate commands.
The halt procedure varies for different types of operating systems. Refer to
the documentation for your operating system for the correct halt procedure.
4. Wait for the system-halted message and the boot monitor prompt.
5. Turn the key switch to the (standby) position.
See Figure 2-1.
6. Turn AC power off:
Turn the AC distribution unit power switch to Off. The switch is at the rear
of the cabinet. See Figure 2-2.