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CUSTOMER ADVISORY: Windows 2012 backup of deduplication volume - restored data is corrupted.


Document ID: c04266348

Version: 1

CUSTOMER ADVISORY: Windows 2012 backup of deduplication volume - restored data is corrupted.
NOTICE: The information in this document, including products and software versions, is current as of the Release Date. This document is subject to change without notice.

Release Date: 2014-04-25

Last Updated: 2014-04-25


  1. If deduplicated volume is mounted *optimized backup is performed on data.

  2. If deduplication on volume is disabled and volume still contains deduplicated data. Data that is still deduplicated will be read in *optimized way.

*Optimized backup; Backing up optimized data (not “rehydrated” - raw format).

DP does not support optimized backup/restore resulting in data corruption at restore.


This advisory provides information about data corruption at restore if backup on deduplicated data was performed.

Affected Versions:

Data Protector v7.03

Data Protector v8.0 and v8.01

Data Protector v8.1 and v8.11


To ensure that backup of Windows 2012 deduplication volumes is properly executed, request SSPNT700_037 for Data Protector 7.03, SSPNT800_010 for Data Protector 8.0 or SSPNT810_007 for Data Protector 8.1, from support and follow the instructions.

Hardware Platforms Affected: Not Applicable
Components Affected: Not Applicable
Operating Systems Affected: Microsoft Windows Server 2012
Software Affected: Not Applicable
Third Party Products Affected: Not Applicable
Support Communication Cross Reference ID: IA04266348
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Document title: CUSTOMER ADVISORY: Windows 2012 backup of deduplication volume - restored data is corrupted.
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