您计划在新服务器上安装Oracle 12c数据库软件。数据库将使用自动存储管理(ASM)和Oracle Restart。服务器上已经安装了用于独立服务器的Oracle Grid基础结构。您需要配置作业角色分离。创建以下操作系统用户和组: - The user oracle as the owner of the Oracle database installation - The user grid as the owner of Oracle Grid Infrastructure - The group oinstall as an Oracle Inventory group - The group dba as the OSDBA group for Oracle database - The group asmdba as the OSDBA group for Oracle ASM - The group asmadmin as the administration privileges group for Oracle ASM - The group asmoper as the group for Oracle ASM 关于os级别的属主和属组，您应该执行哪两个额外的操作? 将oinstall分配为oracle用户的主组 创建与OSBACKUPDBA、OSDGDBA和OSKMDBA系统权限相关联的操作系统组 https://docs.oracle.com/database/121/CWLIN/usrgrps.htm#CWLIN187 assigning asmdba as the secondary group for the oracle user 存疑