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Suspend-Resume
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- The Power Management software introduces a new timesaving feature, called Suspend-Resume.
- The traditional process of powering off your system can be time consuming. Similarly, the process of rebooting and setting up your workspace also can take some time. With the Suspend-Resume feature, you can power off your system and quickly save all your current work in process automatically. Then, at the next power on, your workspace quickly returns to the way it was when you last used the system.
- You can leave your system suspended and powered off for an indefinite length of time without data loss. However, there are some outside operations (such as receiving mail) that may be affected while your system is suspended. Before you use Suspend-Resume features, be sure to read "Choosing to Use Power Management" in Chapter 1, "Introduction to Power Management."
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Note - The Suspend-Resume feature is not supported on systems configured as diskless clients.
- Suspending a system can occur automatically through the AutoShutdown feature in the Power Management software. Also, you can suspend your system manually using the keyboard by following instructions in the next section.
- Suspend allows you to do the following without losing state:
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- Move your system from one location to another
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- Power off your system to conserve energy
- Switch the system power source from a battery to the wall outlet (AC power supply) or vice-versa
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Note - Do not use the Suspend feature if you need to reconfigure your system. You must halt the operating system whenever you want to reconfigure your system.
- Before you suspend a system, you must wait for the following operations to finish:
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- Audio activity
- Floppy disk activity
- Tape activity
- ISDN activity
- Synchronous tty activity
Using Suspend
- Initiating a Suspend and a subsequent Resume usually requires less than a minute. You can initiate Suspend from the keyboard, the Workspace Utilities menu, or the shell command.
· To Initiate Suspend Using the Keyboard
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Press the power key.
- See Figure 4-1 and Figure 4-2 for the location of the power key.
Figure 4-1
Figure 4-2
- After you press the power key, the pop-up confirmation window of the Workspace utility is displayed, as in Figure 4-3
Figure 4-3
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Click on Suspend.
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Wait for the system to power off.
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Power off all external devices.
External devices include disk drives, printers, or other serial or parallel peripherals. See the manual supplied with the external device for instructions.
· To Initiate Suspend Using Keyboard Shortcuts
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Press Shift and the power key.
See Figure 4-1 or Figure 4-2 for the location of the power key.
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Wait for the system to power off.
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Power off all external devices.
External devices include external disk drives, printers, or other serial or parallel peripherals. See the manual supplied with the external device for instructions.
· To Initiate Suspend Using Workspace Utilities
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Place your cursor in the workspace and hold down the menu button.
The Workspace menu is displayed.
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Select Utilities with the menu button.
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Select the Suspend menu option.
The Suspend confirmation is displayed, as shown in Figure 4-3.
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Select Suspend.
The confirmation pop-up will appear after you select Suspend.
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Wait for the system to power off.
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Power off all external devices.
External devices include disk drives, printers, or other serial or parallel peripherals. See the manual supplied with the external device for instructions.
· To Initiate Suspend Using the sys-suspend Command
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Note - You do not need to be running a window system, such as the OpenWindows environment, for the sys-suspend shell command to work.
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At the prompt, type:
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example% /usr/openwin/bin/sys-suspend
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- The Suspend confirmation pop-up window is displayed, as shown in Figure 4-3. If a window system is not running, the command executes without displaying the confirmation pop-up window.
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Click on Suspend.
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Wait for the system to power off.
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Power off all external units.
External devices include disk drives, printers, or other serial or parallel peripherals. See the manual supplied with the external device for instructions.
Resuming Your System
- You can use the following method to manually Resume using a system that has been put into a suspended state by any method.
· To Resume a Suspended System
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Power on all external devices connected to your system.
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Press the power key.
See Figure 4-1 or Figure 4-2 for power key locations.
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