由于克隆PDB数据库，我试图在两个ora19数据库之间创建clone_link
两个DB都创建了用户，如：

CREATE USER c##remote_clone_user IDENTIFIED BY remote_clone_user CONTAINER=ALL;
GRANT CREATE SESSION, CREATE PLUGGABLE DATABASE TO c##remote_clone_user CONTAINER=ALL;

字符串
我想将PDB从DB2复制到DB1，所以我关闭了DB2上的所需PDB，并打开进行阅读：

alter pluggable database testpdb close;
alter pluggable database testpdb open read only;

型
已创建clone_link并尝试复制PDB（tns testpdb连接设置为DB2）

--db link to database we want to copy
create database link clone_link
    connect to C##remote_clone_user identified by remote_clone_user using 'testpdb';

-- clone from DB2 to DB1  
create pluggable database testpdb from testpdb@clone_link
    file_name_convert = ('/u01/app/oracle/oradata/', '/testpdb/');

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但我得到错误：

Error starting at line : 14 in command -
create pluggable database testpdb from testpdb@clone_link
    file_name_convert = ('/u01/app/oracle/oradata/', '/testpdb/')
Error report -
ORA-65169: error encountered while attempting to copy file /u01/app/oracle/oradata/testpdb/testpdb_index.dbf 
ORA-19504: failed to create file "/testpdb/testpdb/testpdb_index.dbf"
ORA-27040: file create error, unable to create file
Linux-x86_64 Error: 13: Permission denied
Additional information: 3
65169. 00000 -  "error encountered while attempting to copy file %s "
*Cause:    An error was encountered while attempting to copy the file
           while creating a pluggable database.
*Action:   Check additional error messages for the cause of the failure to
           copy the file, and resolve the issue accordingly.

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在警报日志中，我只看到：

Undo Create of Pluggable Database TESTPDB with pdb id - 7.
**************************************************************
ORA-65169 signalled during: create pluggable database testpdb from testpdb@clone_link
    file_name_convert = ('/u01/app/oracle/oradata/', '/testpdb/')...

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我不确定需要设置什么权限