Symantec HP-UX manual Group Membership and Atomic Broadcast configuration files, Etc/gabtab

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Installing and configuring the product

Verifying the configuration files

Group Membership and Atomic Broadcast configuration files

The following files are required by the VCS communication services for Group Membership and Atomic Broadcast (GAB).

/etc/gabtab

After installation, the file /etc/gabtab contains a gabconfig(1M) command that configures the GAB driver for use.

The file /etc/gabtab contains a line that resembles:

/sbin/gabconfig -c -n N

where the -coption configures the driver for use and -nN specifies that the cluster will not be formed until at least N systems are ready to form the cluster. N is the number of systems in the cluster.

Checking Group Membership and Atomic Broadcast operation

This section describes how to check GAB operation.

To check GAB operation

■Enter the following command on each node in the cluster.

#/sbin/gabconfig -a

If GAB is operational, the following output displays with GAB port membership information:

GAB Port Memberships

===============================================================

Port a gen	1bbf01 membership 01
Port b gen	1bbf06 membership 01
Port f gen	1bbf0f membership 01
Port h gen	1bbf03 membership 01
Port v gen	1bbf0b membership 01
Port w gen	1bbf0d membership 01

If GAB is not operational, the following output display with no GAB port membership information:

GAB Port Memberships

===============================================================

See the Veritas Cluster Server User’s Guide.

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Contents HP-UX Sfcfs Licensing and registration Technical supportPage Contents Chapter Upgrading the product Adding a node to a clusterInstalling and configuring the product Hardware overview Cluster platforms Fibre channel switchShared storage Packages installed with Sfcfs only Software componentsPackage Contents Packages Contents Optional packages for Sfcfs and Sfcfs HARequired HP-UX patches PHKL32272HP-UX Patch ID Description PHKL32430Product licensing PreinstallationRelease Notes Setting Path and Manpath environment variables Secure communicationRequirements Veritas Enterprise AdministratorPrerequisites Alternatively, remove the file /sbin/init.d/vmsa-serverInstalling the product Enter 1, 2 or 3 to be installed on all systems If you want to use rsh you must specify on the command lineEnter one or more system names to install Sfcfs Change directory to /dvdromConfiguring the Components Do you want to add another user to the cluster? y,n,q y Response file Using the log filesInstallation log file Summary file Etc/llthosts Verifying the configuration files Low Latency Transport configuration files Etc/llttabLog into system02 Checking Low Latency Transport operationOutput resembles # lltstat -p Etc/gabtab Group Membership and Atomic Broadcast configuration filesChecking Group Membership and Atomic Broadcast operation Checking cluster operation Output for an Sfcfs HA installation resemblesEnter the following command on any systems See the hastatus1M manualVerifying the configuration files #System Attribute Value Synchronizing time on Cluster File Systems Verifying agent configurationConfiguring VCS Typical VCS configuration file for Sfcfs file resembles Main.cf fileVCS application failover services Sfcfs HA OnlyVCS application failover services Upgrading the product Upgrade paths Preparing to upgrade the productPlanning the upgrade Complete the following tasks in advance of upgradingMP1 Full upgrade Upgrade OverviewPhased upgrade Upgrading from 3.5 to Change to the top-level directory on the disc# hastart Remove VRTSweb Replace it withRun through , , , and on rest of the nodes to be upgraded See the Veritas Cluster Server Installation Guide Run the following command on all the nodes to start VCS Upgrading from 4.1 to Install all the prerequisite patches and reboot the machines Etc/VRTSvcs/conf/config/main.cf file Full upgrade Etc/VRTSvcs/conf/config/main.cf file Upgrading the disk layout versions # umount /mnt1 Upgrading the disk layout versions Adding and removing a node Adding a node to a cluster Enter y to install Sfcfs on these systemsEnter the system name of the new node to install Sfcfs Change to the Sfcfs directoryEnter 1 or 2 to be installed on all systems Start VxVM on the system that has been addedOpen the VCS configuration for writing Configuring Sfcfs and CVM agents on the new nodeRun the following command Write the new VCS configuration to diskRemoving a node from a cluster Add shared disk groups to the cluster configurationCreate a /mnt on system03 and run the following commands Put the CVM resources back online, in the following order# rm /etc/vxfentab # rm /etc/vxfendg # ./uninstallsfcfs Removing a node from a cluster Enter the system names to uninstall Sfcfs Enter y to uninstall SfcfsUninstalling the product Installation issues Incorrect permissions for root on remote systemResource temporarily unavailable Storage Foundation Cluster File System problemsInaccessible system Unmount failures Mount failuresIf this error message displays Command failuresPerformance issues Following error message displaysHigh availability issues Network partition/jeopardyLow memory