Oracle ASM磁盘组扩容时备选磁盘后面有个Quorum选项是什么意思，选不选？

Voting files manage information about node membership. OCR is a system that manages cluster and Oracle Real Application Clusters (Oracle RAC) database configuration information. A quorum failure group is a special type of failure group and disks in these failure groups do not contain user data. A quorum failure group is not considered when determining redundancy requirements in respect to storing user data. However, a quorum failure group counts when mounting a disk group. For information about failure groups, see "Oracle ASM Failure Groups" .

简单说故障组 quorum 不储存数据 只是仲裁