说明

Starting with Oracle Grid Infrastructure 12c Release 2 (12.2), the placement of Oracle Clusterware files: the Oracle Cluster Registry (OCR), and the Voting Files, directly on a shared file system is deprecated in favor of having Oracle Clusterware files managed by Oracle Automatic Storage Management (Oracle ASM). Placing Oracle Clusterware files directly on a shared file system may be subject to desupport in future releases. If you need to use a supported shared file system, either a Network File System, or a shared cluster file system instead of native disks devices, then you must create Oracle ASM disks on the shared file systems that you plan to use for hosting Oracle Clusterware files before installing Oracle Grid Infrastructure. You can then use the Oracle ASM disks in an Oracle ASM disk group to manage Oracle Clusterware files.

从12.2开始，OCR和Voting Files将只能存储到ASM磁盘组中，由ASM统一管理。http://www.cndba.cn/Expect-le/article/2547

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OCR ASM