ORA-15201: disk [string] contains a valid RDBMS file

Cause: A disk specified in a CREATE DISKGROUP or ALTER DISKGROUP ... ADD DISK command appeared to contain a file from an existing database. By default, ASM will not allow a diskgroup to be created using this disk, as a safeguard against damaging an existing database.

Action: Check that the ASM disk specification is correct. Otherwise, when storage from a defunct database is reused as part of an ASM diskgroup, specify the FORCE option to the ASM SQL command.

Error Type: ORA

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