HP SAN manual Domain ID and domain ID lock

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Domain ID and domain ID lock

The domain ID is a unique Fibre Channel identifier for the switch. The Fibre Channel address consists of the domain ID, port ID, and the Arbitrated Loop Physical Address (ALPA). Switches come from the factory with the Domain ID Lock setting disabled (False). This means that if there is a domain ID conflict in the fabric, the switch with the highest principal priority, or the principal switch, will reassign any domain ID conflicts and establish the fabric. If you lock the domain ID on a switch and a domain ID conflict occurs, one of the switches will isolate as a separate fabric and the Logged-In LEDs on both switches will flash to show the affected ports. See the Set Config Switch command to change the Domain ID Lock and Principal Priority parameters. Refer to the McDATA 4Gb SAN Switch for HP p-Class BladeSystem command line interface guide for information about the Set Config Switch command and the command line interface.

If you connect a new switch to an existing fabric with its domain ID unlocked, and a domain conflict occurs, the new switch will isolate as a separate fabric. However, you can remedy this by resetting the new switch or taking it offline then back online. The principal switch will reassign the domain ID and the switch will join the fabric.

NOTE: Domain ID reassignment is not reflected in zoning that is defined by domain ID and port number pair. You must reconfigure zones that are affected by domain ID reassignment.

The McDATA 4Gb SAN Switch displays domain IDs differently in Standard mode than other M-series directors and edge switches. When the McDATA 4Gb SAN switch is in Standard mode (default), the domain ID will be displayed differently depending on which management utility is used. The valid Domain ID range while in standard mode (default) is 97—127. McDATA Web Server and CLI will display this as 97—127. HAFM will display this as 1—31.

Prior to changing from Standard mode to McDATA Fabric mode, it is recommended that the switch be isolated from the fabric (take switch offline) before making the configuration changes and all domain IDs in the fabric should be noted to avoid conflicts. Once isolated, using CLI or McDATA Web Server, change interop mode to McDATA Fabric mode, and change the domain ID to a unique ID within the valid range of 1—31 for McDATA Fabric mode. It is then recommended that the Domain ID be locked to prevent conflict within the fabric. When all changes have been made and the switch has been brought back online, it should then be added into the fabric.

In McDATA Fabric mode, the McDATA 4Gb SAN Switch will display the domain IDs the same as other M-series directors and edge switches no matter which management utility is used. The valid domain ID range is 1—31 for McDATA Fabric mode.

Prior to changing from McDATA Fabric mode to Standard mode, it is recommended that the switch be isolated from the fabric (take switch offline) before making the configuration changes and all domain IDs in the fabric should be noted to avoid conflicts. Once isolated, using McDATA Web Server, Element Manager, or the CLI, change interop mode to Standard and change the domain ID to a unique ID within the valid range of 97—127 for standard mode. It is then recommended that the Domain ID be locked to prevent conflict within the fabric. When all changes have been made and the switch has been brought back online, it should then be added into the fabric.

Both Standard Mode and McDATA Fabric Mode permit a maximum of 31 domain IDs. For fabrics in which all other switches support 239 domain IDs, you can extend the valid domain IDs on the McDATA 4Gb SAN Switch to 1-239 by enabling 239 Domain Support. See ”Interop mode” on page 73 for more information.

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Contents McDATA 4Gb SAN Switch Page Contents Managing switches Glossary Index Managing portsTables Intended audience PrerequisitesRelated documentation Jdom license Document conventions and symbolsHP-authorized reseller HP technical supportHelpful web sites Using McDATA Web Server/Element Manager Starting McDATA Web Server Workstation requirementsExiting McDATA Web Server or Element Manager Starting Element Manager in HafmSetting preferences Viewing software version and copyright information Using online helpEnabling call home Enabling e-mail supportMcDATA Web Server interface User interfaceMenu bar Shortcut keys Popup menusGraphic window McDATA Web Server Fabric treeSelecting switches Data windows and tabsSelecting ports Securing a fabric Security consistency checklistRemote authentication Connection securityUser account security Device security Edit Security dialog Create Security Group dialog Create Security Set dialogCreate Security Group Member dialog McDATA 4Gb SAN Switch for HP p-Class BladeSystem user guide Viewing properties of a security set, group, or member Editing the security configuration on a switchSecurity Config dialog Archiving a security configuration to a fileActivating a security set Rediscovering a fabric Fabric servicesEvents browser Displaying the event browserSorting the event browser Saving the event browser to a file Filtering the event browserDevices data window Working with device information and nicknamesManaging device port nicknames Displaying detailed device informationEditing a nickname Creating a nicknameDeleting a nickname Exporting nicknames to a fileZoning a fabric Zoning conceptsZones Zoning database Zone setsZoning limits and properties Editing the zoning database Managing the zoning databaseMcDATA 4Gb SAN Switch for HP p-Class BladeSystem user guide Configuring the zoning database Saving the zoning database to a fileRestoring the zoning database from a file Restoring the default zoning database Managing the active zone setRemoving all zoning definitions Active zone set data window Displaying the configured and active zone setsActivating and deactivating a zone set Creating a zone setRemoving a zone from a zone set Removing a zone setCreating a zone in a zone set Managing zonesAdding zone members Renaming a zone or a zone setRemoving a zone member Zone merge failure recovery Merging fabrics and zoningZone merge failure Managing user accounts Managing switchesCreating user accounts User Account Administration dialog Add Account tabRemoving a user account User Account Administration Dialog Remove Account tabUser Account Administration dialog Change Password tab Changing a user account passwordModifying a user account User Account Administration dialog Modify Account tabConfiguring Radius servers Adding a Radius server Removing a Radius server Editing Radius server information Modifying Radius server authentication order Displaying switch information Switch event logDevice and Host Bus Adapter information Switch data window Switch status and operational informationMcDATA 4Gb SAN Switch for HP p-Class BladeSystem user guide With a switch Ratov McDATA Web Server Configured Zonesets data window Port performance statisticsPort status and operational information Configuring port threshold alarms Setting the date/time and enabling NTP client Paging a switchResetting a switch Switch properties Configuring a switchDomain ID and domain ID lock Syslog Symbolic nameSwitch administrative states Broadcast supportIn-band management Fabric Device Management Interface Advanced switch propertiesSystem services Timeout valuesInterop mode Page Network properties Snmp properties Snmp trap configuration Snmp configurationSwitch binding Archiving a switchRestoring a switch Restoring the factory default configuration Downloading a support file Installing Product Feature Enablement keys Installing firmware Hardware status LEDs Displaying hardware statusPort information data window Managing portsPersistent and will be lost on a switch reset VIEnable and LCFEnable features based on Port statistics data window LIP ALPD,ALPS Alps Port symbolic name Viewing and configuring portsPort states Port types Port speeds Port transceiver media statusDevice scan Resetting a port Testing portsPort binding Page Glossary FRU SFP 100 Index 102 System Fault LED 84 system services 104
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