Sun Microsystems Netra 240, Руководство по обслуживанию

Страница: 41 / 154

Chapter 2 Preparing to Service the System 23
5. Press and release the On/Standby button on the bezel (
FIGURE 2-2
).
The system begins an orderly software system shutdown.
Note –
Pressing and releasing the On/Standby button initiates an orderly software
shutdown. Pressing and holding the button for four seconds causes an immediate
hardware shutdown. Whenever possible, initiate an orderly shutdown. Forcing an
immediate hardware shutdown can corrupt the hard drive and cause loss of data.
6. Wait for the front panel green Activity LED to go out.
Refer to
FIGURE 1-5
for the location of the Activity LED.
7. Disconnect both power input cables.
This is the only way to remove power from the server. Electrical power is present
when the server is in Standby mode.
Caution –
As long as the power input cables are connected, potentially hazardous
energy is present inside the server.
8. Close the bezel.
Powering Off the Server Remotely
To issue software commands, set up an alphanumeric terminal connection, a local
graphics monitor connection, ALOM connection, or a TIP connection to the Netra
240 server.
You can power off the system remotely either from the
ok
prompt or from the
ALOM
sc>
prompt.
Caution –
Applications running on the Solaris platform can be adversely affected
by a poorly executed system shutdown. Ensure that you stop and exit applications.
Then shut down the operating system before powering off the system.
Powering Off the System From the
ok
Prompt
1. Before getting to the
ok
prompt, notify users that the system will be powered off.
2. Back up the system files and data, if necessary.