IBM G27, User Reference

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Chapter 8. Troubleshooting
This chapter provides basic troubleshooting information to help you resolve some
common problems that might occur with your appliance. Use Table 7 as an index to
this information.
Table 7. Troubleshooting index
Topic Located on page
Powering on and shutting down procedures 87
Overview of LEDs, POST, and diagnostic programs 88
Troubleshooting the Ethernet Controller 95
Troubleshooting adapters 97
Power checkout 105
Temperature checkout 109
Recovering BIOS 109
Shutting down and powering on the NAS Gateway 300
The clustering function requires special considerations when you need to shut down
and power on the NAS Gateway 300. This section gives the details for those
considerations.
Shutting down the NAS Gateway 300 when clustering is active
CAUTION:
<2–19> The power control button on the device and the power switch on the
power supply do not turn off the electrical current supplied to the device. The
device also might have more than one power cord. To remove all electrical
current from the device, ensure that all power cords are disconnected from
the power source.
Note: For translations of this safety notice, refer to IBM TotalStorage Network
Attached Storage Translated Safety Notices , which can be found on the
Documentation CD-ROM that was shipped with your appliance.
Attention: Powering off the appliance using the power button can result in a loss
of data. Instead, it is recommended you use the following procedure to shut down.
1. Make note of the order in which you shut down the nodes.
You shut the nodes down one at a time, and in the powering on procedure you
start the nodes in the opposite order in which you shut them down.
2. On the node that you want to shut down last (the second node), click Cluster
Administration , located in IBM NAS Admin, in the Cluster Tools folder. If
prompted for a cluster name, enter the name of the cluster, and then click
Open . Make sure that all resources are in the online state.
© Copyright IBM Corp. 2002
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