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ORA-27054:

NFS file system where the file is created or resides is not mounted with correct options
Cause: The file was on an NFS partition and either reading the mount tab file failed or the partition wass not mounted with the correct mount option.
Action: Make sure mount tab file has read access for Oracle user and the NFS partition where the file resides is mounted correctly. For the list of mount options to use refer to your platform specific documentation.
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