Emulex 355 manual Troubleshooting Device Connections

Page 57

EMULEX MODEL 355 SAN STORAGE SWITCH

USER’S GUIDE

CHAPTER 4: TECHNICAL REFERENCE

CHAPTER 4

TECHNICAL REFERENCE

Troubleshooting Device Connections.........................54

Troubleshooting Management Connections ...............55

Port Bypass Conditions and Recovery .......................55

Default Smart Setting Attributes.................................56

Fibre Channel References .........................................57

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 to

more ports but no LEDs

 

a properly earthed receptacle (outlet).

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 both

1.

Make sure that the device is powered on and operating properly.

green and yellow LEDs

2.

Unplug the fiber cable from the node and verify that an optical signal is

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 appropriate

communicating

 

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

54

PART NUMBER 00041407-002 REV. B

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Contents Model ART N Umber 00041407-002 R EV. B Table of Contents Overview Chapter IntroductionInspeed Technology FeaturesTo unpack the switch Installation PreparationSwitch Installation Rack InstallationSwitch can be installed in a rack or placed on a desktop To install the switches in the trayDesktop Installation To place the switch on a desktopUL Guidelines for Mounting Equipment in a Rack Switch Leds Ethernet LEDsEthernet LEDs indicate the network connection status System LEDs SFP Status Port Bypassed Port LEDsAttaching a Device to the Switch Installing an SFPRemoving an SFP SFP CompatibilityTo boot the switch and SAN Booting the Switch and SANChapter Switch Management Configuring the Network Interface Getting StartedTo connect through a serial interface Command Button Description Submit Connecting to the Web ManagerCancel Web Manager OverviewLogin/Logout Command Button Description RebootDocumentation RefreshLog in to the Switch Initial Switch SetupChange the Password To log in to the switchTo view the current date and time Click Switch Date & Time Change the Switch NameTo set the date and time settings To change the switch name Click Switch ConfigurationFrequent Switch Configuration Tasks Managing the SwitchConfiguring the Switch Settings Logging in to the SwitchTo change a switch setting To reset the switchGeneral Switch Settings Switch IdentificationNetwork Location To change the switch speed Click Switch Configuration Switch SpeedVersion Information Blocking ARBTo configure an Snmp trap Setting Snmp TrapsConfiguring Date and Time Settings To change the time Click Switch Date & TimeTo synchronize time with the host system Click Host Time Changing the Password Switch Password page appearsOpening a Telnet Session Adjusting the Switch Thresholds Switch Thresholds page appearsTo change switch thresholds or time intervals Configuring the Port Smart Settings To view the Port Smart Settings Click Port Smart SettingsPort Smart Settings page appears Default Smart Settings To assign a Smart Setting to one or more ports Creating Custom Smart SettingsTo set all ports to the currently selected Smart Setting To create a custom Smart SettingTo modify a custom Smart Setting Smart Setting AssignmentsTo rename a custom Smart Setting To delete a custom Smart SettingPre-Insertion Testing Following settings are availablePort Information Change Notifications Setting Description Stealth Intelligent ChangeManager Change Notification onPort Recovery Diagnostics Managing Firmware and Configuration FilesSetting Description Port Control Bypass on Clock DeltaSwitch Configuration Files Switch Firmware FilesRestoring the Factory Default Settings To restore the factory default configurationOne-Step Zoning To activate zoning To add ports to a zoneTo remove a port from a zone To remove all ports from a zone13 Devices in a Single Zone Single-Switch ZoningTo add storage devices to multiple zones Adding Devices to Multiple Zones17 Devices in Multiple Zones Across Multiple Switches Multiple Switch ZoningAlpa Zoning Recovering a Bad Zone AutomaticallyTo set up Hard Zoning Connecting Ports Through Hard ZoningCascading Switches String CascadesTree Cascades 22 Automatic Trunking example Automatic Trunking23 Advanced Functions Automatic Trunking Load BalancingLoad Indicators To change the load balancing settingsFairness and Prioritization Monitoring the Switch Viewing Switch StatusSwitch Information Current status is provided for the following itemsPort Color Indication Green Port Utilization and HealthYellow RedViewing the Event Log To view the event log Click Switch Event LogEvent Log Messages page appears Last time the event log was polled appears at the topViewing Port Information To view port information Click Port InformationPort Information page appears Port Utilization page appears Viewing Port UtilizationValue Description High AveragePort Diagnostics page appears Viewing Port DiagnosticsTo reset a port Click Advanced Functions Diagnostics Port To save diagnostic informationManual Port Operation To clear the countersViewing Ordered Sets Detection Indication F7 Initialization CRC ErrorChange Notification UnknownTroubleshooting Device Connections Port Bypass Conditions and Recovery Troubleshooting Management ConnectionsDefault Smart Setting Attributes Fibre Channel References Appendixes Operating Conditions Switch SpecificationsLogging in and OUT Connecting to the CLITo connect through a network interface To log in to the CLIFrequent Switch Configuration Tasks Using the CLICLI Commands Event Event Message Severity Severity Description LevelPort Ptbi failed due to timeout Error during Port DiscInterswitch link added/removed LIP Cycle TimeoutHex Decimal Arbitrated Loop Physical AddressesPhysical Address Alpa or Arbitrated LoopArbitration Current Fill WordIndex SFP Part Number 00041407-002 REV. B
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355 specifications

The Emulex 355 is a high-performance network interface card (NIC) designed specifically for data centers requiring advanced connectivity, reliability, and speed. With the rapid evolution of data transmission technology, the Emulex 355 stands out due to its robust features and capabilities that cater to the demands of modern IT infrastructures.

One of the key features of the Emulex 355 is its support for 10 Gigabit Ethernet, which allows for significantly faster data transfer rates compared to standard Gigabit connections. This increased bandwidth is essential for handling large volumes of data traffic, particularly in virtualized environments and cloud computing applications. Its high throughput ensures that data can be transmitted rapidly across networks, minimizing latency and improving overall performance.

The Emulex 355 employs advanced technologies such as iSCSI Offload and FCoE (Fibre Channel over Ethernet), which help enhance data processing efficiency. These technologies allow the card to offload processing tasks from the host system's CPU, reducing the load on server resources and optimizing performance. The result is a more efficient system that can handle more concurrent connections and processes without being overwhelmed.

In addition to speed and efficiency, reliability is paramount in data center operations. The Emulex 355 includes features like error detection and correction, ensuring data integrity during transmission. Built-in redundancy and failover capabilities safeguard against potential network disruptions, allowing for continuous availability of services—a crucial aspect in mission-critical environments.

The Emulex 355 also offers support for various robust networking protocols, enabling seamless integration into existing network infrastructures. Its compatibility with multiple operating systems and virtualization platforms, such as VMware and Microsoft Hyper-V, further enhances its versatility.

Another notable characteristic of the Emulex 355 is its energy-efficient design. It is optimized for lower power consumption without sacrificing performance, aligning with contemporary efforts to reduce the carbon footprint in data centers.

In conclusion, the Emulex 355 NIC is a powerful solution equipped with features that address the complex demands of modern data centers. Its combination of speed, reliability, and efficiency, along with advanced technologies, makes it a preferred choice for organizations looking to enhance their network capabilities and ensure smooth, uninterrupted operations.
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