ORA-59002：Disk revalidation failed for ASM disk group 'string' on instance string due to ORA-string.
错误码
错误描述：Disk revalidation failed for ASM disk group 'string' on instance string due to ORA-string.
错误原因：The disk revalidation failure could be due to various reasons. Signaling ORA-15020 during discovery was a probable one. See the alert log for more details.
解决方法：Ensure that the disks in operation are visible to all the nodes in the cluster before issuing a retry.
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