Emulex 355 Load Indicators, Fairness and Prioritization, To change the load balancing settings

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EMULEX MODEL 355 SAN STORAGE SWITCH

CHAPTER 3: SWITCH MANAGEMENT

USER’S GUIDE

Note: When tape drives or tape libraries are included in multiple switch configurations incorporating multiple trunks, place the tape drive or tape library and any devices that access those devices on the secondary (duplicate) trunk, not the primary trunk.

Load balancing configuration settings are available on the Web Manager’s Load Balancing page. Before implementing load balancing on the switch, the automatic trunking settings must be configured. See “Automatic Trunking” on page 42 for additional information.

To view the Load Balancing page:

Click Advanced Functions > Load Balancing.

Figure 3-25: Load Balancing page

The page is arranged as a grid of check boxes for assigning ports to cascades (“Trunk Groups”).

Load Indicators

The Load Balancing page incorporates two sets of visual indicators for measuring traffic:

•Port Load Indicators–the horizontal bars on the right side of the page that display the current load for each port.

•Trunk Load Indicators–the vertical bars at the bottom of the page that display the current load for each trunk group.

These bars indicate the amount of traffic across a trunk or port. The size of the bars increase in correlation to the amount of traffic and, as a bar’s size increases, can identify a specific trunk or port that is overloaded. If overloading occurs, move one or more ports to a different trunk in the group.

To change the load balancing settings:

1.Click a Trunk Group option to place a port into a specific trunk group.

2.Continue to assign ports to trunk groups as necessary.

3.When finished, click Submit.

Fairness and Prioritization

The concept of “fairness” is based on the principle of ensuring fair device access and communication across all devices in a storage system. The switch incorporates fairness and prioritization through InSpeed technology and Automatic Trunking and Load Balancing functionality. In cooperation with each other, these features ensure even and equal access through multiple links fairly–effectively multiplying bandwidth.

Device prioritization can be achieved using Load Balancing and assigning only a specific device port to a particular cascade. This ensures that a specific device will always have a dedicated trunk.

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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 PreparationTo install the switches in the tray Rack InstallationSwitch Installation Switch can be installed in a rack or placed on a desktopUL Guidelines for Mounting Equipment in a Rack Desktop InstallationTo place the switch on a desktop Ethernet LEDs indicate the network connection status Switch LedsEthernet LEDs System LEDs SFP Status Port Bypassed Port LEDsSFP Compatibility Installing an SFPAttaching a Device to the Switch Removing an SFPTo boot the switch and SAN Booting the Switch and SANChapter Switch Management To connect through a serial interface Configuring the Network InterfaceGetting Started Web Manager Overview Connecting to the Web ManagerCommand Button Description Submit CancelRefresh Command Button Description RebootLogin/Logout DocumentationTo log in to the switch Initial Switch SetupLog in to the Switch Change the PasswordTo change the switch name Click Switch Configuration Change the Switch NameTo view the current date and time Click Switch Date & Time To set the date and time settingsFrequent Switch Configuration Tasks Managing the SwitchTo reset the switch Logging in to the SwitchConfiguring the Switch Settings To change a switch settingNetwork Location General Switch SettingsSwitch Identification Blocking ARB Switch SpeedTo change the switch speed Click Switch Configuration Version InformationTo configure an Snmp trap Setting Snmp TrapsTo synchronize time with the host system Click Host Time Configuring Date and Time SettingsTo change the time Click Switch Date & Time Opening a Telnet Session Changing the PasswordSwitch Password page appears To change switch thresholds or time intervals Adjusting the Switch ThresholdsSwitch Thresholds page appears Port Smart Settings page appears Configuring the Port Smart SettingsTo view the Port Smart Settings Click Port Smart Settings Default Smart Settings To create a custom Smart Setting Creating Custom Smart SettingsTo assign a Smart Setting to one or more ports To set all ports to the currently selected Smart SettingTo delete a custom Smart Setting Smart Setting AssignmentsTo modify a custom Smart Setting To rename a custom Smart SettingPort Information Pre-Insertion TestingFollowing settings are available Change Notification on Setting Description Stealth Intelligent ChangeChange Notifications ManagerPort Recovery Bypass on Clock Delta Managing Firmware and Configuration FilesDiagnostics Setting Description Port ControlSwitch Configuration Files Switch Firmware FilesOne-Step Zoning Restoring the Factory Default SettingsTo restore the factory default configuration To remove all ports from a zone To add ports to a zoneTo activate zoning To remove a port 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 ZoningTree Cascades Cascading SwitchesString Cascades 22 Automatic Trunking example Automatic Trunking23 Advanced Functions Automatic Trunking Load BalancingFairness and Prioritization Load IndicatorsTo change the load balancing settings Current status is provided for the following items Viewing Switch StatusMonitoring the Switch Switch InformationRed Port Utilization and HealthPort Color Indication Green YellowLast time the event log was polled appears at the top To view the event log Click Switch Event LogViewing the Event Log Event Log Messages page appearsPort Information page appears Viewing Port InformationTo view port information Click Port Information Average Viewing Port UtilizationPort Utilization page appears Value Description HighPort Diagnostics page appears Viewing Port DiagnosticsTo clear the counters To save diagnostic informationTo reset a port Click Advanced Functions Diagnostics Port Manual Port OperationViewing Ordered Sets Notification Unknown CRC ErrorDetection Indication F7 Initialization ChangeTroubleshooting Device Connections Port Bypass Conditions and Recovery Troubleshooting Management ConnectionsDefault Smart Setting Attributes Fibre Channel References Appendixes Operating Conditions Switch SpecificationsTo log in to the CLI Connecting to the CLILogging in and OUT To connect through a network interfaceFrequent Switch Configuration Tasks Using the CLICLI Commands Event Event Message Severity Severity Description LevelLIP Cycle Timeout Error during Port DiscPort Ptbi failed due to timeout Interswitch link added/removedHex Decimal Arbitrated Loop Physical AddressesCurrent Fill Word Alpa or Arbitrated LoopPhysical Address ArbitrationIndex 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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