oracle数据软件安装目录介绍（OFA）
英文简称：Oracle Optimal Flexible Architecture (OFA）
oracle数据库软件建议使用OFA规则，便于管理。
安装Oracle Grid Infrastructure for a cluster建议目录和权限：
//在执行安装grid软件之后，目录权限会变为root,因此grid base和grid home必须在不同的目录。
/u01/app/oraInventory, owned by grid:oinstall
/u01/app/oracle, owned by oracle:oinstall
/u01/app/oracle/product/19.0.0/dbhome_1/, owned by oracle:oinistall
/u01/app/grid, owned by grid:oinstall
/u01/app/19.0.0/grid, owned by rootHowever, if you are installing Oracle Grid Infrastructure for a cluster, then be aware that ownership of the path for the Grid home is changed to root after installation and the Grid base and Grid home should be in different location命名规则：
The directory pattern syntax for Oracle homes is /pm/s/u/product/v/type_[n]. The following table describes the variables used in this syntax:
| Variable | Description |
|---|---|
| pm |
A mount point name. |
| s |
A standard directory name. |
| u |
The name of the owner of the directory. |
| v |
The version of the software. |
| type |
The type of installation. For example: Database ( |
| n |
An optional counter, which enables you to install the same product more than once in the same Oracle base directory. For example: Database 1 and Database 2 ( |
For example, the following path is typical for the first installation of Oracle Database on this system:
Copy/u01/app/oracle/product/19.0.0/dbhome_1
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