看看Oracle MOS 文档 444809.1Is use of CIFS Protocol for RMAN backups supported? (Doc ID 444809.1)Can RMAN be used to create backuppieces on CIFS?SolutionWe do not in general certify against particular storage vendors and use of NAS devices...
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Is use of CIFS Protocol for RMAN backups supported? (Doc ID 444809.1)Can RMAN be used to create backuppieces on CIFS?
SolutionWe do not in general certify against particular storage vendors and use of NAS devices (NFS/CIFS) is treated as any other file system.
Oracle does not support CIFS protocol in general because CIFS does not guarantee atomic write of 512 byte (Oracle log block size) like NFS can (with wsize parameter). So in case of power failure, it is possible to corrupt Oracle archived logs.
However, RMAN does NOT rely on 512-byte atomic writes (we write the ENTIRE file and then close it) so the answer is yes: CIFS is fine for RMAN files: backup pieces, datafile copies, archived logs but it is not certified by Oracle.
In other words if there are any problems involved in using RMAN and CIFS, then we cannot get the RDBMS development involved.
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