Deinstallation Tool for Oracle Clusterware and Oracle Real Application Clusters

從標題就知道我們今天要說的是什麼了，沒錯那就是oracle主推的Clusterware、RAC的工具- Deinstallation。
    Deinstallation tool又叫clusterdeconfig tool是一款用於完整解除安裝Clusterware和RAC的工具，它都可以徹底的清除掉你成功安裝完成或者安裝失敗的檔案，deinstallation too不僅僅可以解除安裝cluster中所有節點的CRS和RAC軟體，而且可以解除安裝共享的檔案，資料檔案和OCR。在Windows平臺中，deinstallation tool甚至可以刪除登錄檔中的相關資訊，功能這麼的強大，難怪是oracle的主推產品，也是我居家旅行之必備。
    我引用官方的一段話：
      

Deinstallation Tool for Oracle Clusterware and Oracle Real Application Clusters

The clusterdeconfig tool removes and deconfigures all of the software and shared files that are associated with an Oracle Clusterware or Oracle RAC Database installation. The clusterdeconfig tool removes the software and shared files from all of the nodes in a cluster.

Use the clusterdeconfig tool to prepare a cluster to reinstall Oracle Clusterware and Oracle Database software after a successful or failed installation. The tool removes software, clusterware and database files, and the global configuration across all of the nodes in a cluster environment that could hinder a subsequent installation. On Windows-based systems, the tool removes Windows Registry entries. The clusterdeconfig tool also removes Oracle Clusterware that was installed to support Oracle RAC or to provide failover capabilities for third-party software.

The clusterdeconfig tool restores your cluster to its state prior to the installation, enabling you to perform a new installation. You can also use Oracle Cluster Verification Utility (CVU) to determine the cause of any problems that may have occurred during an installation so that you can correct the errors.

The clusterdeconfig tool will not remove third-party software that depends on Oracle Clusterware. In addition, the clusterdeconfig tool does not warn you about third-party software dependencies on Oracle Clusterware or Oracle Database homes prior to removing the respective homes.

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