INSPEED™ SAN STORAGE SWITCH MODEL 355 CHAPTER 4 TECHNICAL REFERENCE
USER’S GUIDE
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CHAPTER 4TECHNICAL REFERENCE

TROUBLESHOOTING DEVICE CONNECTIONS

Troubleshooting Device Connections.........................56

Troubleshooting Management Connections...............57

Port Bypass Conditions and Recovery.......................57

Default Smart Setting Attributes.................................58

Fibre Channel References......................................... 59

Problem Recommended Action

SFP installed in one or more
ports but no LEDs lit
1) Verify that the power cord is firmly seated into s witch and is connected to a
properly earthed receptacle (outlet).
2) Check the Power LED to ensure that the switch is turned on.
3) Verify that the SFP is firmly seated.
SFP installed but only
yellow LED is lit
Reseat the SFP. If the same condition occurs, the SFP is probably faulty and
should be replaced.
SFP installed with both
green and yellow LEDs lit
1) Make sure that the device is powered on and operating properly.
2) Unplug the fiber cable from the node and verify that an optical signal is
present on the cable receiver lead.
3) Verify that the fiber cable is fully seated at either end.
If optical power meter is available, verify the dev ice is transmitting a signal.
If there is no signal present, the device may require rebooting, device drivers
may need to be reinstalled, or the HBA or disk controller hardware may require
servicing.
If a signal is present on both the cable lead and the end node, the HBA or disk
controller may require service.
4) Ensure the device and switch are operational and set to the same speed.
SFP installed with only
green LED lit, but devices
are not communicating
The switch is receiving a valid signal from the device, but no upper level
protocols are active.
1) Verify that the proper HBA device drivers are loaded for the appropriate
operating system and that the host has been configured to recognize attached
disk devices.
2) Improper FC-AL initialization could result from a defective or inoperat ive
adapter card or device. Run adapter diagnostic s with a loopback connector to
see if the adapter is working properly.
3) Unplug the fiber cable from the end node and v erify that an optical signal is
present on the cable receiver lead. If no signal is present, the cable’s receiver
lead may be bad and the device may be streaming F8 Failure notifications.