Backup of the local server Shadow copy components user data to deduplication storage folder fails with "The deduplication writer cannot be backed up to itself"

Article:TECH178220  |  Created: 2012-01-04  |  Updated: 2013-01-02  |  Article URL http://www.symantec.com/docs/TECH178220
Article Type
Technical Solution



Subject

Issue



This error appears if the backup selection list includes the Backup Exec Deduplication Storage node that appears under Shadow Copy Components > User Data. The deduplication disk storage device cannot be included in a backup job that targets the deduplication disk storage device or the job will fail with the error below:

 


Error



Final error: 0xa0009b0e - The deduplication writer cannot be backed up to itself.
Final error category: System Errors

V-79-40960-39694 - Snapshot Technology: Initialization failure on: "Shadow?Copy?Components". Snapshot technology used: Microsoft Volume Shadow Copy Service (VSS).

Snapshot technology error (0xA0009B0E): The deduplication writer cannot be backed up to itself.

 


Environment



Backup Exec 2012 with Deduplication Storage


Solution



Remove the Deduplication Disk Storage Device from the selection list so that the Deduplication Disk Storage Device can be used as the target for the job. On the backup selection list, go to Shadow Copy Components  > User Data.  Deselect Backup Exec Deduplication Storage.

 

If the only item listed is the deduplication disk storage device, then deselect the Shadow Copy Components node. If other items are listed, such as the Distributed File System Replication (DFSR) component,  then deselect only the Backup Exec Deduplication Storage node. Create a separate Job to backup the Deduplication Storage to a non local Deduplication device.

Note: Deselecting the actual volume or folder where the Deduplication Disk Storage Device is located does not fix this error. The Deduplication Disk Storage Device is backed up as a component of the Shadow Copy Components. The Shadow Copy Components device is not a critical system component. Therefore, the exclusion of the Deduplication Disk Storage Device does not invalidate the backup as a Simplified Disaster Recovery-enabled backup. The Deduplication Disk Storage Device also cannot be recovered by using Simplified Disaster Recovery (SDR).


Supplemental Materials

Value0xa0009b0e
Description

 The deduplication writer cannot be backed up to itself.


SourceUMI
ValueV-79-40960-39694
Description

 

V-79-40960-39694 - Snapshot Technology: Initialization failure on: "Shadow?Copy?Components". Snapshot technology used: Microsoft Volume Shadow Copy Service (VSS).

Snapshot technology error (0xA0009B0E): The deduplication writer cannot be backed up to itself.

 



Article URL http://www.symantec.com/docs/TECH178220


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