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Cluster Shared Volumes (CSV) status becomes Online (Redirected access)
Technical Articles ID:  KB73596
Last Modified:  7/26/2013
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Environment

McAfee VirusScan Enterprise (VSE) 8.8 Patch 1 and later
McAfee VirusScan Enterprise 8.7i Patch 5 Repost
Microsoft Windows 2008 R2 

Problem

After you install VSE 8.7i Patch 5 Repost or VSE 8.8 Patch 1 or later, HyperV servers on Windows 2008 R2 show Cluster Shared Volumes as:

 Online (Redirected access)

If you try to bring the shared volume online, you see the following error:

The Action 'Turn off redirected access for this Cluster Shared Volume' did not complete.

NOTE: VSE functionality is not impacted.
 

If you run the fltmc command, it reports the following:

Filter Name
Num Instances
 Altitude Frame
CSVFilter 
2
 404900 1
mfehidk
 
 329998.99 <Legacy>
mfehidk
2
 321300.00 0

System Change

You installed one of the following:
  • VirusScan Enterprise 8.8 Patch 1 or later
  • VirusScan Enterprise 8.7i Patch 5 (repost)

Cause

Each filter instance requires a unique altitude.

The whole-number portion is pre-assigned so the suffixes (.00) through (.99) are used to deal with upgrade scenarios where a new filter version must coexist with a previous one until you restart your computer. This usage is consistent with Filter Manager's own method of dealing with <legacy> filters.

Solution

Microsoft has confirmed that a Cluster (Windows 2008 R2) will put a Cluster Server Volume (CSV) in redirected mode if a filter’s Altitude is not an integer.

The following Microsoft KnowledgeBase article hotfix resolves the issue where Redirected Mode is enabled unexpectedly in a Cluster Shared Volume when you are running a third-party application in a Windows Server 2008 R2-based cluster.

To obtain the hotfix and instructions to address this issue, see the Microsoft article 2674551: http://support.microsoft.com/default.aspx?scid=kb;EN-US;2674551.

Workaround

Install a version of VSE that has not adopted the new drivers, for example:

  • VSE 8.7i Patch 4 or earlier
  • VSE 8.8

Related Information

NOTE: The version of CSV included with the current Windows server releases is unable to provide full real time protection. The version of CSV included with Windows 2012 Server adds technology that can enable AV vendors to fully support CSV.  VSE 8.8 Patch 5 will be the first release that will adopt this technology.

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