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• The Ethernet link status LED is lit when the Ethernet controller receives a link pulse from the hub.
If the LED is off, there might be a defective connector or cable or a problem with the hub.
• The Ethernet transmit/receive activity LED is lit when the Ethernet controller sends or receives
data over the Ethernet network. If the Ethernet transmit/receive activity is off, make sure that the
hub and network are operating and that the correct device drivers are installed.
Step 5.
Check the Network activity LED on the rear of the server. The Network activity LED is lit when data
is active on the Ethernet network. If the Network activity LED is off, make sure that the hub and
network are operating and that the correct device drivers are installed.
Step 6.
Check for operating-system-specific causes of the problem, and also make sure that the operating
system drivers are installed correctly.
Step 7.
Make sure that the device drivers on the client and server are using the same protocol.
If the Ethernet controller still cannot connect to the network but the hardware appears to be working, the
network administrator must investigate other possible causes of the error.
Troubleshooting by symptom
See this section to find solutions to problems that have identifiable symptoms.
To use the symptom-based troubleshooting information in this section, complete the following steps:
1. Check the event log of the application that is managing the server and follow the suggested actions to
resolve any event codes.
• If you are managing the server from the Lenovo XClarity Administrator, begin with the Lenovo XClarity
Administrator event log.
• If you are managing the server from the Chassis Management Module 2, begin with the Chassis
Management Module 2 event log.
• If you are using some other management application, begin with the Lenovo XClarity Controller event
log.
For more information about event logs, see
2. Review this section to find the symptoms that you are experiencing and follow the suggested actions to
resolve the issue.
3. If the problem persists, contact support (see
Hard disk drive problems
Use this information to resolve issues related to the hard disk drives.
•
"Server cannot recognize a hard drive" on page 295
•
"Multiple hard drives fail" on page 296
•
"Multiple hard drives are offline" on page 297
•
"A replacement hard disk drive does not rebuild" on page 297
•
"Green hard disk drive activity LED does not represent actual state of associated drive" on page 297
•
"Yellow hard disk drive status LED does not represent actual state of associated drive" on page 297
Server cannot recognize a hard drive
Complete the following steps until the problem is solved.
1. Observe the associated yellow hard disk drive status LED. If the LED is lit, it indicates a drive fault.
"Event logs" on page
285)
"Contacting Support" on page
319).
.
Chapter 5
Problem determination
295
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