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4-12 SPARC Enterprise M4000/M5000 Servers Service Manual • August 2009
4.4 Cold Replacement (Powering the Server
Off and On)
In cold replacement all business operations are stopped. Cold replacement is the act
of powering off the server and disconnecting input power. This is normally required
for safety when the inside of the server is accessed.
Note – The input power cables are used to ground the server. If the server is not
mounted in a rack use a grounding strap to ground the server.
Note – After a complete chassis power cycle (all power cords removed), make
certain to allow 30 seconds before plugging the power cords back into the chassis.
4.4.1 Powering the Server Off Using Software
1. Notify users that the server is being powered off.
2. Back up the system files and data to tape, if necessary.
3. Log in to the XSCF Shell and type the poweroff command.
The following actions occur when the poweroff command is used:
■ The Solaris OS shuts down cleanly.
■ The server powers off to Standby mode (the XSCF unit and one fan will still have
power).
Refer to the SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Servers XSCF
User’s Guide for details.
4. Verify the state of the status LED on the XSCF.
The POWER LED should be off.
5. Disconnect all power cables from the input power source.
XSCF> poweroff -a