• Grid Infrastructure Management Repository–Supports Oracle Database Quality of Service management, Memory Guard, and Cluster Health Monitor

These Oracle Clusterware components require the following disk space on a shared file system:

• Three Oracle Clusterware Registry (OCR) files, a least 400 MB for each volume, or 1.2 GB total disk space

• Three voting disk files, 300 MB each volume, or 900 MB total disk space

• The Grid Infrastructure Management Repository requires an additional 5.9 GB of disk space and is stored in an OCR volume
  
  Oracle Grid Infrastructure部署现在支持全局离群网格基础架构管理存储库(GIMR)。 GIMR是一套完整的数据库，如在安装GI的过程中会提示是否要创建GIMR的数据库 ==> MGMTDB.磁盘空间要求6G。