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CSD fails when using exact same NFS backup location

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Read our docs This article details possible cause/s and resolution when using same NFS location on primary and standby to hold the RMAN backup pieces.


Problem Details

Problem Statement

CSD fails when using exact NFS shared location for the RMAN backup.

Applicable Error Code

Error Code: 2041

Affected Versions

Encountered in 8 but could be applicable to all versions

Affected Platforms

Platform-independent

 

Description

CSD fails with below error, as seen in the trace file:

Transferring
/backup/devdb/dbv_DEVDB_csd_dbf_15nsr9444_1_1.rman... >>> File size does not match between source file and destination file. Retrying...

Dbvisit Standby terminated...
Error Code: 2041
Cannot find /backup/devdb/dbv_DEVDB_csd_dbf_15nsr9444_1_1.rman File size does not match between source file and destination file. Retrying...

Solution

Make sure to take into consideration the following notes:

  1. When using same backup location on primary and standby (exact NFS mountpoint), please note that the backup goes to this location which is sitting on a shared storage which is a same shared storage for standby. Therefore, the copy in between systems is not needed anymore. In this case, the best way is to perform CSD using Transportable Media
  2. Mount options must be correct when using RMAN and NFS mountpoints. In the above example, you need to make sure that /backup has the proper mount options according to Oracle recommendations. Below are some Oracle documents which might help, but we suggest to visit My Oracle Support (MOS) for the details:
    • NFS options for 11.2.0.2 RMAN disk backups on Linux 64bit (Doc ID 1117597.1)

    • Mount Options for Oracle files for RAC databases and Clusterware when used with NFS on NAS devices (Doc ID 359515.1)

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