Restart the System

AIX Version 4.3 Problem Solving Guide and Reference

Restart the System

You need to restart your system if the first two procedures fail to correct the problem that makes your system inactive.

Note: Before restarting your system, you need to complete a system dump. Go to "System Dump Facility" for more information.

This procedure involves:

Checking the Position of the Mode Switch, if available

The correct position for the Mode Switch depends on the type of software you want to load.

Position the Mode Switch according to one of the following conditions:

Use the Normal position to load the operating system.
Use the Service position to boot the system from maintenance mode or hardware diagnostics (refer to "Hardware Diagnostics" ).

Go to "Checking the State of the Boot Device".

Checking the State of the Boot Device

Your system boots with either a removable medium, an external device, a small computer system interface (SCSI) device, an integrated device electronics (IDE) device, or a local area network (LAN). Decide which method applies to your system and use the following instructions to check the boot device:

For a removable medium, such as tape, make sure the medium is inserted correctly.
For IDE devices, verify that the IDE device id settings are unique per adapter. If only one device is attached to the adapter, the IDE device id must be set to the master device.
For an externally attached device, such as a tape drive, make sure:
- The power to the device is turned on.
- The device cables are correctly attached to the device and to the system unit.
- The ready indicator is on (if the device has one).
For external SCSI devices, verify that the SCSI address settings are unique.
For a LAN, verify that the network is up and operable.

Is the boot device working correctly?

Yes	Go to "Loading the Operating System" .
No	Go to "Hardware Diagnostics" .

Loading the Operating System

Load your AIX operating system by doing the following:

Switch off your system's power.
Wait 1 minute.
Switch on your system's power.
Wait about 5 minutes while the system boots.

Did your system boot successfully?

Yes

Your steps to restart the system have corrected the problem with your inactive system.

If the AIX operating system failed to load, boot the hard disk from Maintenance Mode or load or hardware diagnostics.

To load hardware diagnostics, refer to "Hardware Diagnostics" .

If you are still unable to restart the system, you can use an SRN to report the problem with your inactive system to your service representative. Go to "Hardware Diagnostics" to learn how to get an SRN.