1.使用oracle账号连接数据库，查看v$asm_diskgroup

v$asm_diskgroup中state的说明 随笔 第1张

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2.使用grid账号连接ASM实例，查看v$asm_diskgroup

v$asm_diskgroup中state的说明 随笔 第2张

3.官方v$asm_diskgroup关于state的解释

https://docs.oracle.com/en/database/oracle/oracle-database/19/refrn/V-ASM_DISKGROUP.html#GUID-5CF77719-75BE-4312-84A3-49A7C6A20393

v$asm_diskgroup中state的说明 随笔 第3张

CONNECTED - Disk group is in use by the database instance

BROKEN - Database instance lost connectivity to the Oracle ASM instance that mounted the disk group

UNKNOWN - Oracle ASM instance has never attempted to mount the disk group

DISMOUNTED - Disk group was cleanly dismounted by the Oracle ASM instance following a successful mount

MOUNTED - Instance is successfully serving the disk group to its database clients

QUIESCING - CRSCTL utility attempted to dismount a disk group that contains the Oracle Cluster Registry (OCR). The disk group cannot be dismounted until Cluster Ready Services (CRS) exits, because the disk group contains the OCR.

v$asm_diskgroup还有个额外的说明：

v$asm_diskgroup中state的说明 随笔 第4张

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