HP QLogic Converged Network Adapter Installation Guide (747713-001, September 2013)

3 Troubleshooting
This chapter contains information to help you resolve potential CNA problems.
Isolating CNA problems
This section describes how to resolve typical problems with the CNA.
Observe and collect data
The first step in troubleshooting any CNA problem is to observe and collect information about the
problem. Consider the following:
• If the CNA has been working, what has changed? For example, changes to switch or storage
system firmware could affect the CNA.
• Identify the expected and observed results.
• List as many of the observed symptoms as possible.
• Collect relevant information including, but not limited to:
CNA firmware, BIOS, and utilities revision information◦
◦ Applicable switch and storage subsystems revision information
◦ Operating system driver and path management revision information and log files
◦ CNA LED and startup BIOS message
Isolate the problem to the component
After collecting the data, use the data to isolate the problem to a particular component. The typical
components in a CNA solution are a server with a CNA, cables, Converged Network (CN) switch,
storage subsystem, and Fibre Channel switches. Because the focus on this chapter is the CNA, the
rest of this section focuses on typical CNA problem isolation.
CNA problem isolation
Most of the common problems with the CNA are either link connectivity issues, which affect both
Ethernet and Fibre Channel access, or Fibre Channel storage discovery issues.
Verify server and CNA startup BIOS messages
1. Inspect for server POST errors.
2. Verify that the system detects the CNA and has the appropriate firmware. See “CNA startup
BIOS message” (page 23).
If either of these two steps fail, the most likely cause is either a faulty CNA or the CNA is
incompatible with the server model.
Verify the CNA link
1. Verify connectivity at the CN switch port. Use the switch management utility to display the
port information and verify the CNA port WWN.
See Figure 16 (page 21) and Figure 17 (page 21) for examples of the CN switch link status.
HP Restricted20 Troubleshooting