An Automated System Recovery backup of the system state fails on a Windows Server 2008 failover cluster node if the database of an application is saved on a shared disk

To resolve this issue, you must apply this hotfix and create a ClusteredCAEnabled registry key. For more information about how to create a ClusteredCAEnabled registry key, see the "Registry information" section.


Note Windows Server 2008 does not support Bare Metal Recovery backup for cluster shared disks that are marked as critical volumes, even after you install this hotfix. Bare Metal Recovery backup is supported by Windows Server 2008 R2.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is 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 Web site:

http://support.microsoft.com/contactus/?ws=support

Note 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.

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

To apply this hotfix, the computer must have Windows Server 2008 or Windows Server 2008 Service Pack 2 (SP2) installed. Additionally, the computer must have the Failover Clustering feature installed.

Registry information

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 How to back up and restore the registry in Windows

To use the hotfix, you must create a registry key. To do this, follow these steps:

1. Log on to the computer as an administrator, and then start Registry Editor.
2. Locate and then right-click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSS\Settings
3. Point to New, and then click DWORD Value.
4. Type ClusteredCAEnabled, and then press Enter.
5. Double-click ClusteredCAEnabled, type 1 in the Value data box, and then click OK.
6. Exit Registry Editor.

Restart requirement

You must restart the computer after you apply this hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2008 file information note

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

  Version	Product	SR_Level	Service branch
  6.0.6001.18xxx	Windows Vista and Windows Server 2008	SP1	GDR
  6.0.6001.22xxx	Windows Vista and Windows Server 2008	SP1	LDR
  6.0.6002.18xxx	Windows Vista and Windows Server 2008	SP2	GDR
  6.0.6002.22xxx	Windows Vista and Windows Server 2008	SP2	LDR

• Service Pack 1 is integrated into the original release of Windows Server 2008.
• GDR service branches contain only fixes that are broadlyreleased to address widespread, critical issues. LDR service branches containhotfixes in addition to broadly released fixes.
• The MANIFEST files (.manifest) and the MUM files (.mum)that are installed for each environment are listed separately. MUM and MANIFEST files, andthe associated security catalog (.cat) files, are critical to maintaining thestate of the updated component. The security catalog files (attributes notlisted) are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008

For all supported x86-based versions of Windows Server 2008 SP2

For all supported x64-based versions of Windows Server 2008

For all supported x64-based versions of Windows Server 2008 SP2

For all supported Itanium-based versions of Windows Server 2008

For all supported Itanium-based versions of Windows Server 2008 SP2