Emulex 375 manual Troubleshooting Device Connections

EMULEX MODEL 375 SAN STORAGE SWITCH

USER’S GUIDE	CHAPTER 4: TECHNICAL REFERENCE
CHAPTER 4	TECHNICAL REFERENCE

Troubleshooting Device Connections.........................59

Troubleshooting Management Connections ...............60

Port Bypass Conditions and Recovery .......................60

Default Smart Setting Attributes.................................61

Fibre Channel References .........................................62

TROUBLESHOOTING DEVICE CONNECTIONS

Problem	Recommended Action
SFP installed in one or	1. Verify that the power cord is firmly seated into switch and is connected
more ports but no		to a properly earthed receptacle (outlet).
LEDs lit	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	Reseat the SFP. If the same condition occurs, the SFP is probably faulty
yellow LED is lit	and should be replaced.
SFP installed with	1.	Make sure that the device is powered on and operating properly.
both green and yellow	2.	Unplug the fiber cable from the node and verify that an optical signal is
LEDs lit		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 device 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 that the device and switch are operational and set to the same
		speed.
SFP installed with only	The switch is receiving a valid signal from the device, but no upper level
green LED lit, but	protocols are active.
devices are not	1.	Verify that the proper HBA device drivers are loaded for the
communicating		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
		inoperative adapter card or device. Run adapter diagnostics with a
		loopback connector to see if the adapter is working properly.
	3.	Unplug the fiber cable from the end node and verify 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.

EMULEX CORPORATION 59

PART NUMBER 00041392-002 REV. B