How to Create a Node-Specific Directory for the Cluster File System

1. On each cluster node, create the local directory that is to maintain node-specific information.

   Ensure that the local directory structure that you create matches the global directory structure that contains the node-specific information. For example, the global directory /global/oracle/network/agent might contain node-specific information that you require to be stored locally under the /local directory. In this situation, you would create a directory that is named /local/oracle/network/agent.

   # mkdir -p local-dir

   -p

   Specifies that all nonexistent parent directories are created first

   local-dir

   Specifies the full path name of the directory that you are creating

2. On each cluster node, make a local copy of the global directory that is to maintain node-specific information.

   Ensure that the local copy of the node-specific information is contained in the local directory that you created in Step 1.

   # cp -pr global-dir local-dir-parent

   -p

   Specifies that the owner, group, permissions modes, modification time, access time, and access control lists are preserved.

   -r

   Specifies that the directory and all its files, including any subdirectories and their files, are copied.

   global-dir

   Specifies the full path of the global directory that you are copying. This directory resides on the cluster file system under the directory that the ORACLE_HOME environment variable specifies.

   local-dir-parent

   Specifies the directory on the local node that is to contain the local copy. This directory is the parent directory of the directory that you created in Step 1.

3. Replace the global directory that you copied in Step 2 with a symbolic link to the local copy of the global directory.

   1. From any cluster node, remove the global directory that you copied in Step 2.

      # rm -r global-dir

      -r

      Specifies that the directory and all its files, including any subdirectories and their files, are removed.

      global-dir

      Specifies the file name and full path of the global directory that you are removing. This directory is the global directory that you copied in Step 2.

   2. From any cluster node, create a symbolic link from the local copy of the directory to the global directory that you removed in Step a.

      # ln -s local-dir global-dir

      -s

      Specifies that the link is a symbolic link

      local-dir

      Specifies that the local directory that you created in Step 1 is the source of the link

      global-dir

      Specifies that the global directory that you removed in Step a is the target of the link

Example 1–1 Creating Node-Specific Directories

This example shows the sequence of operations that is required to create node-specific directories on a two-node cluster. This cluster is configured as follows:

• The ORACLE_HOME environment variable specifies the /global/oracle directory.

• The local file system on each node is located under the /local directory.

The following operations are performed on each node:

1. To create the required directories on the local file system, the following commands are run:

   # mkdir -p /local/oracle/network/agent

   # mkdir -p /local/oracle/network/log

   # mkdir -p /local/oracle/network/trace

   # mkdir -p /local/oracle/srvm/log

   # mkdir -p /local/oracle/apache

2. To make local copies of the global directories that are to maintain node-specific information, the following commands are run:

   # cp -pr $ORACLE_HOME/network/agent /local/oracle/network/.

   # cp -pr $ORACLE_HOME/network/log /local/oracle/network/.

   # cp -pr $ORACLE_HOME/network/trace /local/oracle/network/.

   # cp -pr $ORACLE_HOME/srvm/log /local/oracle/srvm/.

   # cp -pr $ORACLE_HOME/apache /local/oracle/.

The following operations are performed on only one node:

1. To remove the global directories, the following commands are run:

   # rm -r $ORACLE_HOME/network/agent

   # rm -r $ORACLE_HOME/network/log

   # rm -r $ORACLE_HOME/network/trace

   # rm -r $ORACLE_HOME/srvm/log

   # rm -r $ORACLE_HOME/apache

2. To create symbolic links from the local directories to their corresponding global directories, the following commands are run:

   # ln -s /local/oracle/network/agent $ORACLE_HOME/network/agent

   # ln -s /local/oracle/network/log $ORACLE_HOME/network/log

   # ln -s /local/oracle/network/trace $ORACLE_HOME/network/trace

   # ln -s /local/oracle/srvm/log $ORACLE_HOME/srvm/log

   # ln -s /local/oracle/apache $ORACLE_HOME/apache