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Preparing to add a node

Before configuring using the Oracle Add Node procedure, you must obtain IP addresses and configure CVM.

 To prepare for installing Oracle

1. Obtain two IP addresses:
2. one IP address for the private interconnect, which should be non-routable
3. one public IP address to be plumbed as alias against the host interface, which must be on the same subnet as the system network interface
2. Create a local group and local user for Oracle. Be sure to assign the same group ID, user ID, and home directory as exists on the systems in the current cluster.

   # groupadd -g 1000 oinstall

   # groupadd -g 1001 dba

   # groupadd -g 1002 oper

   # useradd -g dba -u 1001 -d /lhome/oracle oracle

3. Create a password for the user oracle:

   # passwd oracle

4. Create the directory structure for all shared mount points as defined in the main.cf configuration file. Include the Oracle OCR and Vote disk mount point if on the file system, the Oracle binaries if on CFS, and the Oracle database. The directory structure must be same as defined on the systems in the current cluster.

   Example of mount point for OCR and Vote disk:

   # mkdir -p /ora_crs/

   Example of mount point for Oracle binaries

   # mkdir-p /app/oracle/orahome

   Example of mount point for Oracle database:

   # mkdir -p /oradata

5. Change nership and group to Oracle user.

   # chown -R oracle:oinstall app/oracle

   # chown -R oracle:oinstall app/crshome

   # chown -R oracle:oinstall oradata

   # chown -R oracle:oinstall ocrvote