Sun Microsystems Sun Fire E25K Service Manual page 191

2. On the main SC, power off the domain hardware by typing:
sc% poweroff
This command powers off the entire system with the exception of the power
supplies, fans, and the SCs. Refer to poweroff(1M) for more information.
3. Shut down the System Control boards by doing the following:
As a superuser on the spare SC, shut down the spare SC by typing:
I
sc_spare# shutdown -y -g seconds -i 0
where seconds is the amount of time before shutdown.
On the main SC, power off the spare SC by typing:
I
sc% poweroff SCx
where x is 0 or 1, dependent upon which SC is the spare.
As a superuser on the main SC, shutdown the main SC by typing:
I
sc# shutdown -y -g seconds -i 0
where seconds is the amount of time before shutdown.
4. Open the Sun Fire E25K/E20K systems cabinet access doors.
Note – All DC circuit breakers are to remain in the on position at all times.
5. Power on the AC0 and AC1 circuit breakers for all power supplies in the system.
6. Label and disconnect the twelve (12, six per side) AC power cords with the labels
provided in the ship kit.
Chapter 16 Cable Replacement Procedures 16-9