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ORA-27054: NFS file system where the file is created or resides is not mounted with correct options

bash-3.2$ impdp system/***** directory=import_dir nologfile=y dumpfile=exp_swx_20092012.dmp full=y
ORA-39001: invalid argument value
ORA-39000: bad dump file specification
ORA-31640: unable to open dump file "/USwitch/exportdump/exp_swx_20092012.dmp" for read
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options
Additional information: 3
Additional information: 18

While trying to import a dumpfile from an NFS mount point via impdp in Oracle 11g 11.2.0.3 you get below error

Solution : I solved this issue using a dual approach. the 2nd step is one I got from searching on the internet but the directory permission i discovered after a lot of trial and error methods.

1. Give full permission to the import directory from OS. Suppose the directory which you created from the database was called import_dir . Then check location of directoru from view dba_directories and give full permission to it.

SQL> select * from dba_directories;
$ chmod 777 /USwitch/exportdump

Unmount and Mount the NFS file system again.

2. Set below parameter in init.ora file and then bounce database
event=’10298 trace name context forever, level 32′

Now try import again. If running RAC use nologfile=y parameter

bash-3.2$ impdp system/sys123 directory=import_dir nologfile=y dumpfile=exp_swx_20092012.dmp full=y
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