How to fix the Oracle error ORA-56870: Attempt to register dead cell with Master Diskmon?

In this post, you’ll learn more about the Oracle ErrorORA-56870: Attempt to register dead cell with Master Diskmon with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-56870: Attempt to register dead cell with Master Diskmon

Reason for the Error ORA-56870: Attempt to register dead cell with Master Diskmon

An attempt was made by a process to register a cell that is known to be down.

How to fix the Error ORA-56870: Attempt to register dead cell with Master Diskmon ?

You can fix this error in Oracle by following the below steps

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