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Mpio.sys – Pre Service Pack 2 Revision History for Windows Server 2008 R2 SP1, Windows 7 SP1 and Windows Small Business Server 2011 (SBS2011)

29-Mar-2012 – 6.1.7601.21953 – Mpio.sys – x64 – http://support.microsoft.com/kb/2670762 – MPIO does not log path failure events in the event log on a Windows Server 2008 R2-based computer

12-Jan-2012 – 6.1.7601.21896 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2661794 – MPIO does not remove a disk that is on a failed path in Windows Server 2008 R2

27-Aug-2011 – 6.1.7601.21802 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2591462 – A boot LUN can be disabled if it is claimed for use with MPIO in Windows 7 or in Windows Server 2008 R2

28-Jun-2011 – 6.1.7601.21758 – Mpio.sys – x64 – http://support.microsoft.com/kb/2549567 – “0x000000D1” Stop error message when you back up files to a storage device on a computer that is running Windows Server 2008 R2

20-May-2011 – 6.1.7601.21731 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2522766 – The MPIO driver fails over all paths incorrectly when a transient single failure occurs in Windows Server 2008 or in Windows Server 2008 R2

04-May-2011 – 6.1.7601.21720 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2406705 – Some I/O requests to a storage device fail on a fault-tolerant system that is running Windows Server 2008 or Windows Server 2008 R2 when you perform a surprise removal of one path to the storage device

19-Mar-2011 – 6.1.7601.21687 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2511962 – “0x000000D1” Stop error occurs in the Mpio.sys driver in Windows Server 2008 R2

11-Mar-2011 – 6.1.7601.21680 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2460971 – MPIO failover fails on a computer that is running Windows Server 2008 R2

15-Jan-2011 – 6.1.7601.21642 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2277904 – You cannot access an MPIO-controlled storage device in Windows Server 2008 R2 after you send the “IOCTL_MPIO_PASS_THROUGH_PATH_DIRECT” control code that has an invalid MPIO path ID

Mpio.sys – Pre Service Pack 3 Revision History for Windows Server 2008 SP2 and Windows Small Business Server 2008 (SBS2008)

09-Oct-2012 – 6.0.6002.22946 – Mpio.sys – x86/x64 – https://support.microsoft.com/kb/2754704 – A hotfix is available that provides a mechanism for DSM to notify MPIO that a particular path is back to online in Windows Server 2008

06-May-2011 – 6.0.6002.22637 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2522766 – The MPIO driver fails over all paths incorrectly when a transient single failure occurs in Windows Server 2008 or in Windows Server 2008 R2

12-Mar-2011 – 6.0.6002.22610 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/2406705 – Some I/O requests to a storage device fail on a fault-tolerant system that is running Windows Server 2008 or Windows Server 2008 R2 when you perform a surprise removal of one path to the storage device

05-Mar-2010 – 6.0.6002.22355 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/979743 – You cannot use an MPIO storage device after a failover operation in Windows Server 2008 or in Windows Server 2008 R2

11-Jun-2009 – 6.0.6002.22151 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/970525 – Cluster resources fail over before the time expires in the PDORemovePeriod parameter in Windows Server 2008

29-Apr-2009 – 6.0.6002.22125 – Mpio.sys – x86/x64 – http://support.microsoft.com/kb/968287 – The MPIO failover process does not complete on a Windows Server 2008-based computer that uses Microsoft Device Specific Module for MPIO

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