2.2 Prerequisites for Installing the Module

Before discovering OracleRACUnix, you must complete the following steps:

  1. Install the UNIX Agent on any UNIX Machine, preferably on a non-RAC node machine

  2. Configure passwordless SSH between the agent machine user and grid user in one of the RAC nodes

    HINT:Configure the SSH between agent machine and all RAC nodes without passwords. You can continue monitoring if one of the RAC nodes goes down.

  3. Quickly configure the SSH, without passwords, by completing the steps:

    1. Sign in with the user name used for installing agent, run the ssh-keygen command to generate keys.

    2. Run the command ssh-copy-id -i id_rsa.pub grid@racnode1.

    3. Repeat steps 3a and 3b for the other RACnodes in the cluster.

    NOTE:: It is recommended that you have one Agent proxy machine for monitoring one Oracle RAC Cluster.

  4. Add the entries in /etc/hosts file of the Agent Machine for each RAC node.

    NOTE:The Agent machine must be able to resolve the SCAN IPs.

  5. Use the UNIX Agent Manager (UAM) or wcPatch utility, to apply the respective OracleRAC patch for the UNIX Agent. For example, apply the p75p12 patch for UNIX Agent 7.5.

  6. Use UAM to configure the OracleRAC options, or run the AM_HOME/mo/bin/RACConfig.sh script, and follow the on-screen instructions to complete the configuration. You can find the AM_HOME in the /etc/vsaunix.cfg file.

  7. To add the Security Manager entries for each Database on the agent machine, select the Custom tab, then click Add. For each database, complete the following steps:

    • Label - Enter oracleRAC

      HINT:This is the only case that you will use a lower case o.

    • Sub-Label - Enter the RAC node hostname/IP Address:DatabaseName. For example, enter 172.16.0.1:CDB.

      NOTE:The Hostname/IP Address should be same for which SSH, without passwords, which is configured from the Agent Machine

    • Value 1 - Enter the user name. This step is mandatory.

    • Value 2 - Enter a password. This step is mandatory.

    • Select Extended application support to encrypt the data. This step is mandatory.

  8. To add the Security Manager entries for each ASM instance on the agent machine, select the Custom tab, then click Add. For each ASM instance, complete the following steps:

    • Label - Enter oracleRAC

      HINT:This is the only case that you will use a lower case o.

    • Sub-Label - Enter the RAC node hostname/IP Address:ASM instanceName. For example, enter 172.16.0.1:+ASM.

      NOTE:The Hostname/IP Address should be same for which SSH, without passwords, which is configured from the Agent Machine

    • Value 1 - Enter the user name. This step is mandatory.

    • Value 2 - Enter a password. This step is mandatory.

    • Select Extended application support to encrypt the data. This step is mandatory.