Category Archives: Backup Exec

Volsnap.sys – Pre Service Pack 3 Revision History for Windows Server 2003 SP2 and Windows Small Business Server 2003 SP2 (SBS 2003)

Volsnap.sys – Pre Service Pack 3 Revision History for Windows Server 2003 SP2 and Windows Small Business Server 2003 SP2 (SBS 2003)

15-Jan-2010 – 5.2.3790.4650 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/979457 – Some snapshots are not mounted in Windows Server 2003 SP2 after computer restarts if there are many snapshots

13-Jan-2010 – 5.2.3790.4649 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/979407 – A node of a cluster may stop responding in Windows Server 2003 SP2

18-May-2009 – 5.2.3790.4516 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/967551 – Rollup update for the volsnap.sys driver in Windows Server 2003

23-Feb-2009 – 5.2.3790.4465 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/967327 – Shadow copies that you create in Windows Server 2008 cannot be detected in Windows Server 2003

31-Aug-2007 – 5.2.3790.4143 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/940349 – Availability of a Volume Shadow Copy Service (VSS) update rollup package for Windows Server 2003 to resolve some VSS snapshot issues

06-Aug-2007 – 5.2.3790.4127 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/940041 – Volume Shadow Copy Service snapshots may be unexpectedly deleted after you restart a Windows Server 2003-based computer

03-Aug-2007 – 5.2.3790.4126 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/940239 – VSS cannot create a volume snapshot even when VSS has sufficient memory space in Windows Server 2003

19-Jul-2007 – 5.2.3790.4120 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/940252 – The Volume Shadow Copy Service may leak private bytes and virtual memory when you use the service to take frequent snapshots in Windows Server 2003 or in Windows XP

23-May-2007 – 5.2.3790.4087 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/933653 – A memory leak occurs when an application performs a snapshot on a computer that is running Windows Server 2003

12-Feb-2007 – 5.2.3790.4021 – Volsnap.sys – x86/x64 – http://support.microsoft.com/kb/931312 – Windows Server 2003 may not start when the Volume Shadow Copy Service is enabled

Windows 7, Windows Server 2008 R2 or SBS 2011 with Service Pack 1 – Randomly Stops Responding after you use the VSS Software Provider in Windows

If you are using the Volume Shadow Copy Service (VSS) software provider on a system running Windows 7 – Service Pack 1, Windows Server 2008 R2 – Service Pack 1 or Small Business Server 2011 – Service Pack 1 then you may find the computer randomly stops responding.

 

This occurs because volsnap.sys tries to obtain a lock again on a file even if it is already holding a lock.

A hotfix can be requested to resolve the issue using KB 2627052 http://support.microsoft.com/kb/2627052