Emulex 375 manual Alpa Zoning, Recovering a Bad Zone Automatically

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EMULEX MODEL 375 SAN STORAGE SWITCH

CHAPTER 3: SWITCH MANAGEMENT

USER’S GUIDE

To configure multiple-switch zoning, do the following for each switch:

1.Plan which ports should belong in each zone.

2.From the One-Step Zoning page, select the appropriate ports for each zone.

Switch A

Switch B

Figure 3-18: Zones Coordinated on Multiple Switches

3. Ensure that the Zoning Active check box is selected for both switches.

Caution: Clearing the Zoning Active check box will deactivate all zones, which may degrade system performance or compromise security.

4. After making changes, click Submit.

AL_PA Zoning

AL_PA zoning is a specific zoning configuration that prevents devices from accessing one another.

AL_PA zoning fully ensures that devices will not access each other by blocking a group of devices (using AL_PAs) from communicating with each other; however, AL_PA zoning allows the devices to communicate with devices outside of the group.

AL_PA zoning is only accessible through the Command Line Interface (CLI). Refer to the Emulex® or InSpeed™ Storage Switch Products’ CLI Reference Guide for additional information.

Recovering a Bad Zone Automatically

Bad zone recovery policy automatically recovers traffic if a device has brought down the zone. The zone state is monitored continuously. If ports are inserted into a zone, but the zone state never transitions to the Zone Up or Zone Active state after a set period of time (Hold Time), all devices in the pertinent zone are bypassed and then allowed to reinsert. There is a secondary timeout, the Bad Zone Recovery Delay Time, that can also be configured. The Bad Zone Recovery Delay Time causes a delay before ports are allowed to reinsert, which prevents a high "thrashing" level of port insertions and de-insertions and ensures that some devices can reset. The Bad Zone Recovery Hold Time and Delay Time threshold settings are available on the Advanced Functions Switch Thresholds page.

When this policy is enabled with the associated PTBI policy, the device causing a zone to go down is not allowed back into the zone due to the PTBI policy, which allows the system to return to normal operation. The combination of the Bad Zone Recovery and PTBI policies has resulted in significant improvements to SAN availability.

Note: The Bad Zone Recovery policy is enabled by default. If the Bad Zone Recovery policy is disabled, use the following instructions to enable this policy for the appropriate zones.

To activate bad zone recovery:

1.Click Advanced Functions > One-Step Zoning.

2.Under Bad Zone Recovery, select the check boxes for the appropriate zones.

3.Click Submit.

EMULEX CORPORATION

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PART NUMBER 00041392-002 REV. B

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Contents Emulex Model ART N Umber 00041392-002 R EV. B Table of Contents Chapter Introduction OverviewFeatures Inspeed TechnologySwitch Applications Storage Consolidation and Shared Storage Pooling3depicts a sample tape library consolidation configuration Tape Library ConsolidationRich Media Server ClusteringInstallation Preparation To unpack the switchSwitch Installation Rack InstallationDesktop Installation To place the switch on a desktopTo insert the power cord with the retention clip in place Installing the Retention Clips optionalTo install the retention clip To remove the power cord with the retention clip in placeEthernet LEDs Switch LedsEthernet LEDs indicate the network connection status System LEDs Port LEDsPower Supply/Fan Module LED Removing an SFP Installing an SFPAttaching a Device to the Switch SFP CompatibilityBooting the Switch and SAN To boot the switch and SANTo remove an old power supply/fan module Power SUPPLY/FAN Module ReplacementTo insert a new power supply/fan module Chapter Switch Management Getting Started Configuring the Network InterfaceTo connect through a serial interface Web Manager Overview Connecting to the Web ManagerCommand Button Description Submit To connect to the Web ManagerLogin/Logout Command Button Description CancelReboot DocumentationChange the Password Initial Switch SetupLog in to the Switch To log in to the switchTo set the date and time settings Change the Switch NameTo view the current date and time Click Switch Date & Time To change the switch name Click Switch ConfigurationManaging the Switch Frequent Switch Configuration TasksTo change a switch setting Logging in to the SwitchConfiguring the Switch Settings To reset the switchSwitch Identification General Switch SettingsNetwork Location Version Information Switch SpeedTo change the switch speed Click Switch Configuration Blocking ARBSetting Snmp Traps To configure an Snmp trapTo change the time Click Switch Date & Time Configuring Date and Time SettingsTo synchronize time with the host system Click Host Time Switch Password page appears Changing the PasswordOpening a Telnet Session Switch Thresholds page appears Adjusting the Switch ThresholdsTo change switch thresholds or time intervals To view the Port Smart Settings Click Port Smart Settings Configuring the Port Smart SettingsPort Smart Settings page appears Default Smart Settings To set all ports to the currently selected Smart Setting Creating Custom Smart SettingsTo assign a Smart Setting to one or more ports To create a custom Smart SettingTo rename a custom Smart Setting Smart Setting AssignmentsTo modify a custom Smart Setting To delete a custom Smart SettingFollowing settings are available Pre-Insertion TestingPort Information Manager Setting Description Stealth Intelligent ChangeChange Notifications Change Notification onPort Recovery Setting Description Port Control DiagnosticsBypass on Clock Delta To load new firmware on the switch Managing Firmware and Configuration FilesSwitch Firmware Files To check for new firmwareSwitch Configuration Files Restoring the Factory Default SettingsUp green One-Step ZoningColor Description Down red Not Active yellowSingle-Switch Zoning Adding Devices to Multiple Zones To add storage devices to multiple zonesMultiple Switch Zoning 16 Ports in Multiple Zones on the One-Step ZoningRecovering a Bad Zone Automatically Alpa ZoningConnecting Ports Through Hard Zoning To set up Hard ZoningString Cascades Cascading SwitchesTree Cascades Automatic Trunking 22 Automatic Trunking exampleLoad Balancing 23 Advanced Functions Automatic TrunkingLoad Indicators To change the load balancing settingsMonitoring the Switch Viewing Switch StatusFairness and Prioritization Switch Information Current status is provided for the following itemsYellow Port Utilization and HealthPort Color Indication Green RedEvent Log Messages page appears To view the event log Click Switch Event LogViewing the Event Log Last time the event log was polled appears at the topTo view port information Click Port Information Viewing Port InformationPort Information page appears Value Description High Viewing Port UtilizationPort Utilization page appears AverageViewing Port Diagnostics Port Diagnostics page appearsManual Port Operation To save diagnostic informationTo reset a port Click Advanced Functions Diagnostics Port To clear the countersViewing Ordered Sets Change CRC ErrorDetection Indication F7 Initialization Notification UnknownTroubleshooting Device Connections Troubleshooting Management Connections Port Bypass Conditions and RecoveryDefault Smart Setting Attributes Fibre Channel References Appendixes Switch Specifications Operating ConditionsTo connect through a network interface Connecting to the CLILogging in and OUT To log in to the CLIUsing the CLI Frequent Switch Configuration TasksCLI Commands Severity Description Level Event Event Message SeverityLIP Cycle Timeout Error during Port DiscPort Ptbi failed due to timeout System config reset to factory defaultArbitrated Loop Physical Addresses Hex DecimalArbitration Alpa or ArbitratedLoop Physical Address Current Fill WordIndex SFP Part Number 00041392-002 REV. B
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