C H A P T E R 7 - Powering a Server On and Off

C H A P T E R 7

Powering a Server On and Off

This chapter provides instructions for powering a Netra CT server on and off, and it contains the following topics.

Connecting a Terminal Console to a Server

Powering On a Server

Powering Off the Server

Note - Whenever you reboot or power your server on and off, the hot-swap states revert back to the default full hot swap state for all I/O slots. If you want basic hot swap on an I/O slot, you must manually reset the I/O slot to basic hot-swap after rebooting or powering your server on and off.

Note - You can power a Netra CT server on and off through the alarm card using software commands. Refer to the Netra CT Server System Administration Manual for information.

Connecting a Terminal Console to a Server

One way to power your server on and off is to log in to the server either remotely, where you would log in to the Netra CT server as superuser through another server on the network, or directly, where you would connect a terminal console directly to your Netra CT server. A terminal console can be an ASCII terminal, workstation, or PC laptop.

For a direct login, the connection you use varies depending on the Netra CT server model you have, the type of terminal console you are using, and the board that you are connecting to:

If you are using an ASCII terminal to power the Netra CT server on and off, go to To Connect Using an ASCII Terminal.

If you are using a Solaris workstation to power the Netra CT server on and off, go to To Use a Solaris Workstation.

If you are using a PC laptop to power the Netra CT server on and off, go to To Connect Using a PC Laptop.

To Connect Using an ASCII Terminal

1. Get the appropriate cable and adapter, then make the necessary connections.

You might need one or more cables and adapters to connect the ASCII terminal to the server. The cables and adapters you need vary, depending on the model server you have and the board that you are connecting to.

If you are connecting an ASCII terminal to a CPU board or RTM, use the information in TABLE 7-1 to make the necessary connections.

If you are connecting an ASCII terminal to an alarm card or alarm RTM, use the information in TABLE 7-2 to make the necessary connections.

TABLE 7-1 Connecting an ASCII Terminal to a Board or Rear Transition Module
Server Type	TTY A Port on Netra CT Server	Adapter	Cable	Adapter	Serial Port on Terminal
Netra CT 810 server	DB-9 male on the CPU RTM. See To Connect Cables to Host Rear Transition Modules.	Not needed	DB-9 female-to-DB-25 male straight-through	DB-25 female-to-DB-25 female gender changer	DB-25 male
Netra CT 410 server	DB-9 male on the CPU RTM. See To Connect Cables to Host Rear Transition Modules.	Not needed	DB-9 female-to-DB-25 male straight-through	DB-25 female-to-DB-25 female gender changer	DB-25 male

TABLE 7-2 Connecting an ASCII Terminal to an Alarm or Alarm RTM
Server Type	COM 1 Port on Netra CT Server	Adapter	Cable	Adapter	Serial Port on Terminal
Netra CT 810 server	DB-9 male on the alarm RTM. See To Connect Cables to Alarm Rear Transition Module.	Not needed	DB-9 female-to-DB-25 male straight-through	DB-25 female-to-DB-25 female gender changer	DB-25 male
Netra CT 410 server	DB-9 male on the alarm RTM. See To Connect Cables to Alarm Rear Transition Module.	Not needed	DB-9 female-to-DB-25 male straight-through	DB-25 female-to-DB-25 female gender changer	DB-25 male

2. Access the Set Up Menu of the ASCII terminal and bring up the serial communications section.

3. Set up the serial port communications parameters.

The default settings should match the values reported on the host serial port.

Hard-wired modem connection

No parity

9600 baud

1-stop bit

8-bit data

4. Test the connection.

Verify that communication is established to the server and the keyboard/display of the ASCII terminal.

To Use a Solaris Workstation

1. Obtain the cable and adapter and make the necessary connections.

You might need one or more cables and adapters to connect a Solaris workstation to a server. The cables and adapters you need vary, depending on the model server you have and the board that you are connecting to.

If you are connecting a Solaris workstation to a CPU board or RTM, use the information in TABLE 7-3 to make the necessary connections.

If you are connecting a Solaris workstation to an alarm card or alarm RTM, use the information in TABLE 7-4 to make the necessary connections.

TABLE 7-3 Connecting a Solaris Workstation to a Board or Rear Transition Module
Server Type	TTY A Port on Netra CT Server	Adapter	Cable	Adapter	Serial Port on Workstation
Netra CT 810 server	DB-9 male on the CPU RTM. See To Connect Cables to Host Rear Transition Modules.	Not needed	DB-9 female-to-DB-25 male null modem	Not needed	DB-25 female
Netra CT 410 server	DB-9 male on the CPU RTM. See To Connect Cables to Host Rear Transition Modules.	Not needed	DB-9 female-to-DB-25 male null modem	Not needed	DB-25 female

TABLE 7-4 Connecting a Solaris Workstation to an Alarm or Alarm RTM
Server Type	COM 1 Port on Netra CT Server	Adapter	Cable	Adapter	Serial Port on Workstation
Netra CT 810 server	DB-9 male on the alarm RTM. See To Connect Cables to Alarm Rear Transition Module.	Not needed	DB-9 female-to-DB-25 male null modem	Not needed	DB-25 female
Netra CT 410 server	DB-9 male on the alarm RTM. See To Connect Cables to Alarm Rear Transition Module.	Not needed	DB-9 female-to-DB-25 male null modem	Not needed	DB-25 female

2. Check the /etc/remote file for the appropriate line.

To connect to the TTY A or COM 1 port on the workstation, check for:

tip -9600 /dev/ttya

3. Type tip hardwire at the prompt.

The word connected is displayed as the response.

To disconnect the tip window, type ~. (tilde period) at the prompt.

To Connect Using a PC Laptop

1. Obtain the cable and adapter, then make the necessary connections.

You might need one or more cables and adapters to connect a PC laptop to a server. The cables and adapters you need vary, depending on the model server you have and the board that you are connecting to.

If you are connecting a PC laptop to a CPU board or RTM, use the information in TABLE 7-5 to make the necessary connections.

If you are connecting a PC laptop to an alarm card or alarm RTM, use the information in TABLE 7-6 to make the necessary connections.

TABLE 7-5 Connecting a PC Laptop to a Board or Rear Transition Module
Server Type	TTY A Port on Netra CT Server	Adapter	Cable	Adapter	Serial Port on PC Laptop
Netra CT 810 server	DB-9 male on the CPU RTM. See To Connect Cables to Host Rear Transition Modules.	Not needed	DB-9 female-to-DB-9 female null modem	Not needed	DB-9 male
Netra CT 410 server	DB-9 male on the CPU RTM. See To Connect Cables to Host Rear Transition Modules.	Not needed	DB-9 female-to-DB-9 female null modem	Not needed	DB-9 male

TABLE 7-6 Connecting a PC Laptop to an Alarm or Alarm RTM
Server Type	COM 1 Port on Netra CT Server	Adapter	Cable	Adapter	Serial Port on PC Laptop
Netra CT 810 server	DB-9 male on the alarm RTM. See To Connect Cables to Alarm Rear Transition Module.	Not needed	DB-9 female-to-DB-9 female null modem	Not needed	DB-9 male
Netra CT 410 server	DB-9 male on the alarm RTM. See To Connect Cables to Alarm Rear Transition Module.	Not needed	DB-9 female-to-DB-9 female null modem	Not needed	DB-9 male

2. Set the following connection parameters:

No parity

9600 baud

1-stop bit

8-bit data

Powering On a Server

Note - You must have the host CPU board and alarm card and system controller board installed in a Netra CT server before you power it on; the server will not power on properly if these components are not installed. Once the system is powered on and running, you can hot-swap any of the three components as documented in the Netra CT Server Service Manual. Do not reboot the server if the alarm is in the process of resetting.

To Power On a Server

1. Verify that the power supply locking mechanisms on the server you are about to power on are in the locked (), or down, positions (FIGURE 7-1).

Make sure you lock both power supplies if you are powering on a Netra CT 810 server.

FIGURE 7-1 Locating the Power Supply Locking Mechanism on the Netra CT 810 Server

When the power supply locking mechanism is locked, the green LED on the power supply flashes, indicating that the power supply is powered on; however, the server is not powered on yet. The PDU LEDs on the system status panel should be as follows:

Green LED () is ON

Amber LED () is OFF

These states indicate that the power supply locking mechanisms are in the locked (down) position, and that the power distribution units are receiving power and functioning properly.

2. Locate the system status panel.

The location of the system status panel in a Netra CT 810 server and Netra CT 410 server are illustrated in FIGURE 7-2.

FIGURE 7-2 System Status Panel Locations

3. Locate the system power button on the system status panel, then press the system power button to power on the server.

FIGURE 7-3 shows the system power button location for a Netra CT 810 server, and FIGURE 7-4 shows the system power button location for a Netra CT 410 server.

When you first power on the Netra CT server, some or all of the green Power LEDs on the system status panel flash on and off for several moments.

FIGURE 7-3 System Power Button and System Power LED Locations (Netra CT 810 Server)

FIGURE 7-4 System Power Button and System Power LED Locations (Netra CT 410 Server)

4. Verify that the system power LED on the system status panel is on, indicating that the system is completely powered on.

FIGURE 7-3 shows the system power LED location for a Netra CT 810 server, and FIGURE 7-4 shows the system power LED location for a Netra CT 410 server.

5. Verify that the green power () LEDs on the power supplies are on, indicating that they are powered on and functioning properly.

6. If you have a Netra CT 410 server, connect an external DVD drive to your server.

See Appendix A for information.

7. Insert the Solaris OS DVD into the DVD drive.

8. Log in to your server.

See Connecting a Terminal Console to a Server for instructions on connecting a terminal to your server, if necessary.

9. Boot up the server through the DVD drive.

As superuser, enter:

# boot cdrom

Powering Off the Server

You can power off the Netra CT server one of three ways, depending on the terminal hookup and the state of the host CPU board:

If you have a terminal hookup on your server and the host CPU is functioning normally, go through a graceful software power-down for your server. A graceful software power-down is a normal power-down using a terminal connected to your server, where you would log onto the server as superuser, then execute a software command to bring the server down safely. Go to To Perform a Graceful Software Power-Down for those procedures.

If you do not have a terminal hookup to your server but your host CPU board is functioning normally, go through a graceful hardware power-down for your server. For a graceful hardware power-down, press the system power button for less than four seconds. This action starts an orderly power-down sequence in such a manner that no persistent OS data structures are corrupted. Applications in service might be abnormally terminated and no further services are invoked by the host CPU. Go to To Perform a Graceful Hardware Power-Down for procedures.

If you do not have a terminal hookup to your server and your host CPU board is not functioning normally, go through an ungraceful hardware power-down. For an ungraceful hardware power-down, press the system power button for more than four seconds. This action immediately shuts the system down without making any attempts to keep persistent OS data structures from being corrupted.

To Perform a Graceful Software Power-Down

1. In preparation for bringing down the operating system and powering down the server, ensure that all significant application activity is stopped on the server.

2. Log in to your server as root.

See Connecting a Terminal Console to a Server for information.

3. Determine if you are at the OpenBoot (ok) prompt.

If you are at the ok prompt, go to Step 4.

If you are not at the ok prompt, at the system console, enter:

# cd /

# shutdown -i0 -g0 -y

When the server is finished shutting down, the ok prompt is displayed.

4. At the ok prompt, enter:

ok power-off

5. Go to the front of the Netra CT server and locate the power supply units.

6. Determine if the green power () LED on the power supply units are blinking.

If the green power LEDs on the power supply units are blinking, then the system is in standby mode. Go to Step 7.

If the green power LEDs on the power supply units are not blinking, then the system did not respond to the graceful power-down; you must go through an ungraceful hardware power-down instead. Press the system power button for more than four seconds. This action immediately shuts the system down without making any attempts to keep persistent OS data structures from being corrupted.

7. If you want to completely power off the Netra CT server, push the purple power supply unit locking mechanisms up into the unlocked () position (see FIGURE 7-1).

Note - You must unlock the locking mechanism on both power supply units on the Netra CT 810 server to completely power off the server.

The green power () LEDs on the power supply units go off (unlit), indicating that the system is now completely powered off.

To Perform a Graceful Hardware Power-Down

1. In preparation for bringing down the operating system and powering off the server, ensure that all significant application activity is stopped on the server.

2. Go to the front of the Netra CT server and locate the system status panel.

The locations of the system status panels in the Netra CT 810 server and Netra CT 410 server are illustrated in FIGURE 7-2.

3. Locate the system power button on the system status panel.

FIGURE 7-3 shows the system power button location for a Netra CT 810 server, and FIGURE 7-4 shows the system power button location for a Netra CT 410 server.

4. Press the system power button and release it to go through a graceful hardware power-down.

This action starts the orderly power-down sequence in such a manner that no persistent OS data structures are corrupted. Applications in service might be abnormally terminated and no further services are invoked by the host CPU. The system power LED blinks for several seconds, then goes off.

5. Wait for several moments, then verify that the green power () LEDs on the power supply units are blinking, indicating that the system is in the standby mode.

FIGURE 7-3 shows the system power LED location for a Netra CT 810 server, and FIGURE 7-4 shows the system power LED location for a Netra CT 410 server.

6. If you want to completely power off the Netra CT server, push the purple power supply unit locking mechanisms up into the unlocked () position (see FIGURE 7-1).

Note - You must unlock the locking mechanism on both power supply units on the Netra CT 810 server to completely power off the server.

The green power () LEDs on the power supply units go off (unlit), indicating that the system is now completely powered off.