Emulex 355 manual Alpa Zoning, Recovering a Bad Zone Automatically

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EMULEX MODEL 355 SAN STORAGE SWITCH

CHAPTER 3: SWITCH MANAGEMENT

USER’S GUIDE

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 00041407-002 REV. B

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Contents Model ART N Umber 00041407-002 R EV. B Table of Contents Chapter Introduction OverviewFeatures Inspeed TechnologyInstallation Preparation To unpack the switchSwitch can be installed in a rack or placed on a desktop Rack InstallationSwitch Installation 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 Port LEDs SFP Status Port BypassedRemoving an SFP Installing an SFPAttaching a Device to the Switch SFP CompatibilityBooting the Switch and SAN To boot the switch and SANChapter Switch Management Configuring the Network Interface Getting StartedTo connect through a serial interface Cancel Connecting to the Web ManagerCommand Button Description Submit Web Manager OverviewDocumentation Command Button Description RebootLogin/Logout RefreshChange 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 switchGeneral Switch Settings Switch IdentificationNetwork Location Version Information Switch SpeedTo change the switch speed Click Switch Configuration Blocking ARBSetting Snmp Traps To configure an Snmp trapConfiguring 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 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 SettingPre-Insertion Testing Following settings are availablePort Information Manager Setting Description Stealth Intelligent ChangeChange Notifications Change Notification onPort Recovery Setting Description Port Control Managing Firmware and Configuration FilesDiagnostics Bypass on Clock DeltaSwitch Firmware Files Switch Configuration FilesRestoring the Factory Default Settings To restore the factory default configurationOne-Step Zoning To remove a port from a zone To add ports to a zoneTo activate zoning To remove all ports from a zone Single-Switch Zoning 13 Devices in a Single ZoneAdding Devices to Multiple Zones To add storage devices to multiple zonesMultiple Switch Zoning 17 Devices in Multiple Zones Across Multiple SwitchesRecovering a Bad Zone Automatically Alpa ZoningConnecting Ports Through Hard Zoning To set up Hard ZoningCascading Switches String CascadesTree Cascades Automatic Trunking 22 Automatic Trunking exampleLoad Balancing 23 Advanced Functions Automatic TrunkingLoad Indicators To change the load balancing settingsFairness and Prioritization Switch Information Viewing Switch StatusMonitoring the Switch 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 topViewing Port Information To view port information Click 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 SeverityInterswitch link added/removed Error during Port DiscPort Ptbi failed due to timeout LIP Cycle TimeoutArbitrated Loop Physical Addresses Hex DecimalArbitration Alpa or Arbitrated LoopPhysical Address Current Fill WordIndex SFP Part Number 00041407-002 REV. B
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