Tasks of a Database Administrator : Roll Out to Additional Hosts (17)

After you have an Oracle Database installation properly configured, tuned, patched,
and tested, you may want to roll that exact installation out to other hosts. Reasons to
do this include the following:
■ You have multiple production database systems.
■ You want to create development and test systems that are identical to your
production system.
Instead of installing, tuning, and patching on each additional host, you can clone your
tested Oracle Database installation to other hosts, saving time and eliminating
inconsistencies. There are two types of cloning available to you:
■ Cloning an Oracle home—Just the configured and patched binaries from the
Oracle home directory and subdirectories are copied to the destination host and
"fixed" to match the new environment. You can then start an instance with this
cloned home and create a database.
You can use the Enterprise Manager Clone Oracle Home tool to clone an Oracle
home to one or more destination hosts. You can also manually clone an Oracle
home using a set of provided scripts and Oracle Universal Installer.
■ Cloning a database—The tuned database, including database files, initialization
parameters, and so on, are cloned to an existing Oracle home (possibly a cloned
home).
You can use the Enterprise Manager Clone Database tool to clone an Oracle
database instance to an existing Oracle home.

資料庫管理員職責之 : 啟動另外的主機
當資料庫正確的配置 , 調優 , 打完補丁 , 可將安裝資訊複製到另外一個主機 , 用來將開發環境
與測試環境分隔開 . 這一步可採用克隆資料庫方式進行 .
克隆資料庫的方式 : 克隆資料庫目錄 , 克隆資料庫(檔案)

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