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Configuring the new node

You must manually configure the new node after installing the SF Oracle RAC depots.

 To configure the new node

1. Create a local group and local user for Oracle in the new node.

   The user and group ids for oracle must be the same as those on the other cluster nodes.

   # groupadd -g 1000 oinstall

   # groupadd -g 1001 dba

   # groupadd -g 1002 oper

   # useradd -u 999 -g oinstall -G dba,oper -d /oracle oracle

2. Create a password for the Oracle user on each node:

   # passwd oracle

3. Make sure that the user Oracle can remsh between the nodes without having to use or confirm a password. If not, in the Oracle user account directory (for example, /oracle), create a .rhosts file that includes plus characters ("+ +") in the first line.
4. Create mount point directories for the Oracle base and CRS file system having the OCR and Vote Disk files.
   • Create the Oracle base mount point.

     # mkdir /oracle

   • Create the mount point for the CRS file system having the OCR and Vote Disk files.

     # mkdir /ora_crs

   • Create the mount point for the Oracle Database.

     # mkdir /rac_db

5. Create the local CRS volume and the file system.

   See Preparing $CRS_HOME on each node.

6. Plumb the private NIC and the virtual public IP addresses.

   See Configuring private IP addresses for CRS.

   See Creating public virtual IP addresses for Oracle.

7. Modify the VCS configuration as illustrated in the following example. Execute the following commands from one of the existing nodes. For example, galaxy or nebula.
   • Enable write access to the VCS configuration:

     # haconf -makerw

   • Add the new node to the cluster:

     # hasys -add saturn

   • If the ClusterService service group is configured, add the new node to its system list and specify a failover priority.

     For example, add a node saturn with failover priority "2":

     # hagrp -modify ClusterService SystemList -add saturn 2

   • If the ClusterService service group is configured, add the new node to its AutoStartList:

     # hagrp -modify ClusterService AutoStartList \

     galaxy nebula saturn

   • Configure the service groups on the new node (saturn). For example, to add the CVM service group:
     • Add the node to the SystemList of the CVM service group.

       # hagrp -modify cvm SystemList -add saturn 2

     • Add the node to the AutoStartList of the CVM service group by specifying the remaining nodes in the desired order:

       # hagrp -modify cvm AutoStartList galaxy nebula saturn

   • Add the node to the CVMCluster resource by adding it to the CVMNodeId attribute key list:

     # hares -modify cvm_clus CVMNodeId -add saturn 2

   • Add the resource for the PrivNIC network interfaces.

     # hares -modify ora_priv Device lan1 0 lan2 1 -sys saturn

   • Add the resource for the PrivNIC IP address.

     # hares -modify ora_priv Address "10.10.19.23" -sys saturn

   • Add the new node information for other VCS resources that exist.
   • Save the new configuration to disk:

     # haconf -dump -makero

8. On each of the existing nodes, enable the nodes to recognize the new node.

   # /opt/VRTS/bin/vxclustadm -m vcs -t gab reinit

9. Restart the new node.

   # /usr/sbin/shutdown -r now

   As the new node boots, VCS propagates the configuration from the existing cluster nodes to the new node. All the configuration files located in the /etc/VRTSvcs/conf/config directory, including main.cf, CVMTypes.cf, CFSTypes.cf, and OracleTypes.cf are identical on each node.

10. At this point, GAB membership shows membership for all the nodes. Following ports must be up on all the nodes:

    # gabconfig -a

    GAB Port Memberships

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

    Port a gen df205 membership 012

    Port b gen df20e membership 012

    Port d gen df20f membership 012

    Port f gen df219 membership 012

    Port h gen df211 membership 012

    Port o gen df208 membership 012

    Port v gen df215 membership 012

    Port w gen df217 membership 012