Cluster Server Installation Guide for Solaris x64 5.0 - Storage ...

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156 Adding and removing cluster nodesAdding a node to a clusterTable 8-1TaskTasks involved in adding a node to a clusterReferenceConfigure LLT and GAB.Add the node to the existing cluster.Start VCS and verify the cluster.“Configuring LLT and GAB” onpage 157“Adding the node to the existingcluster” on page 158“Starting VCS and verifying thecluster” on page 159Setting up the hardwareBefore configuring a new system to an existing cluster, you must physically addthe system to the cluster.Figure 8-1Adding a node to a three-node cluster using two independent hubsPublic NetworkPrivateNetworkTo set up the hardware1 Connect the VCS private Ethernet controllers. ■If you are expanding from a two-node cluster, you need to useindependent hubs for the private network connections, replacingcrossover cables if they are used.■ If you already use independent hubs, connect the two Ethernetcontrollers on the new node to the independent hubs.Figure 8-1 illustrates a new node being added to an existing three-nodecluster using two independent hubs.2 Connect the system to the shared storage, if required.
Adding and removing cluster nodesAdding a node to a cluster157Installing the VCS software manuallyConfiguring LLT and GABInstall the VCS 5.0 packages manually and install the license key.See “Installing VCS software manually” on page 85.See “Adding a license key” on page 87.Create the LLT and GAB configuration files on the new node and update the fileson the existing nodes.To configure LLT1 Create the file /etc/llthosts on the new node. You must also update it on eachof the current nodes in the cluster.For example, suppose you are adding east to a cluster consisting of northand south:■■If the file on one of the existing nodes resembles:0 north1 southUpdate the file for all nodes, including the new one, resembling:0 north1 south2 east2 Create the file /etc/llttab on the new node, making sure that line beginning“set-node” specifies the new node.The file /etc/llttab on an existing node can serve as a guide.See “/etc/llttab” on page 130.The following example describes a system where node east is the new nodeon cluster number 2:set-node eastset-cluster 2link e1000g0 e1000g:0 - ether - link e1000g1 e1000g:1 - ether - 3 On the new system, run the command:# /sbin/lltconfig -c To configure GAB1 Create the file /etc/gabtab on the new system.■If the /etc/gabtab file on the existing nodes resembles:/sbin/gabconfig -c
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98 Setting up I/O fencingAbout I/O
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