Symptoms

Consider the following scenario:

  • You install the Data Deduplication file service on a Windows Server 2012-based computer.

  • You enable data deduplication on a large data volume that has a high data deduplication savings rate.

  • You create an optimization job, and then you start the job.

In this situation, the data deduplication optimization job fails. Additionally, you receive the following error message:

Error: Hotspot table is too small to hold all hotspots., 0x8056530c, Data deduplication encountered an unexpected error. Check the Data Deduplication Operational event log for more information.


Cause

This issue occurs because a hotspot table is not sized correctly on the large data volume.

Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running Windows Server 2012.

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You might have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.


The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2012 file information notesImportant Windows 8 and Windows Server 2012 hotfixes are included in the same packages.

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.20 xxx

    Windows Server 2012

    RTM

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2012" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x64-based versions of Windows Server 2012

File name

File version

File size

Date

Time

Platform

Ddppipeline.dll

6.2.9200.20842

2,001,920

5-Oct-13

4:19

x64

Ddpscan.dll

6.2.9200.20842

585,216

5-Oct-13

4:19

x64

Ddpstore.dll

6.2.9200.20842

2,256,384

5-Oct-13

4:19

x64




Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional files for all supported x64-based versions of Windows Server 2012

File property

Value

File name

Amd64_ea8702c91bc23e9c8281361168c438bc_31bf3856ad364e35_6.2.9200.20842_none_baf54e5959731062.manifest

File version

Not applicable

File size

706

Date (UTC)

5-Oct-13

Time (UTC)

14:43

Platform

Not applicable

File name

Amd64_microsoft-windows-dedup-pipeline_31bf3856ad364e35_6.2.9200.20842_none_b2d858f4638d940a.manifest

File version

Not applicable

File size

15,120

Date (UTC)

5-Oct-13

Time (UTC)

6:16

Platform

Not applicable


Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!

×