Sep 23

IC92873: SOME EXECUTABLE FILES FOR WINDOWS SERVICES NOT BACKED UP ON WINDOWS 8 AND WINDOWS SERVER 2012

APAR Comments Off on IC92873: SOME EXECUTABLE FILES FOR WINDOWS SERVICES NOT BACKED UP ON WINDOWS 8 AND WINDOWS SERVER 2012

Error description

  • Some executable files (xxxxxxxx.exe) for Windows NT style
    services are excluded from backup. This can impact system
    restores such that certain applications or services will not
    start.
    
    Beginning with Microsoft Windows Vista and Microsoft Windows
    Server 2008, executables for Windows NT style services are
    treated as part of the VSS System Writer portion of system
    state. Thus the Tivoli Storage Manager backup-archive client
    backs up these files as part of system state and omits them from
    other file system backup operations.
    
    Beginning with Microsoft Windows 8 and Microsoft Windows Server
    2012, these executable files remain a part of the VSS System
    Writer, but are not considered to be part of the recoverable
    system state. Therefore the correct behavior for Tivoli Storage
    Manager is to include these files during file system incremental
    backup but not during system state backup.
    
    For example, if the Tivoli Storage Manager Backup-Archive Client
    scheduler service is installed on Windows Vista, Windows 7,
    Windows 8, Windows Server 2008, Windows Server 2008 R2, or
    Windows Server 2012, then the executable file for the scheduler
    service (dsmcsvc.exe) is treated as part of the VSS System
    Writer. However, it is only treated as part of recoverable
    system state on Windows Vista, Windows 7, Windows Server 2008,
    and Windows Server 2008 R2. dsmcsvc.exe should not be treated as
    part of recoverable system state on Windows 8 and Windows 2012.
    
    The following table summarizes the correct behaviors for backup
    of these executable files:
    
    Table 1:
    
                            PART OF         BACKED UP AS PART OF
     OPERATING SYSTEM    SYSTEM WRITER   SYSTEM STATE   FILE SYSTEM
     ----------------    -------------   ------------   -----------
     Windows Vista            Yes            Yes            No
     Windows 7                Yes            Yes            No
     Windows 8                Yes            No             Yes
     Windows Server 2008      Yes            Yes            No
     Windows Server 2008 R2   Yes            Yes            No
     Windows Server 2012      Yes            No             Yes
    
    The following table summarizes the problem behavior for these
    executable files on the affected operating systems:
    
    Table 2:
    
                            PART OF         BACKED UP AS PART OF
     OPERATING SYSTEM    SYSTEM WRITER   SYSTEM STATE   FILE SYSTEM
     ----------------    -------------   ------------   -----------
     Windows 8                Yes            No             No
     Windows Server 2012      Yes            No             No
    
    The Backup-Archive Client behavior should be corrected so that
    these executable files are backup up as part of the file system
    backup operations as shown in Table 1 above.
    
    Tivoli Storage Manager Versions Affected:
    Tivoli Storage Manager client versions 6.3.1.x (x >= 1) and
    6.4.0.x (x >= 1) on Windows 8 and Windows Server 2012
    
    Note: Support for Windows 8 and Windows Server 2012 was
    added as of versions 6.3.1.0 and 6.4.0.0.
    
    Initial Impact:
    Medium
    
    Additional Keywords:
    zz63 zz64 TSM exe writers vss IC89320
    
    | MDVREGR 6.3.1.1-TIV_5698MCL |
    | MDVREGR 6.4.0.1-TIV_5698MCL |

     

Local fix

  • Downgrade client code to 6.4.0.0
    or make a copy of missing executables to a new path and
    backup/archive client filesystem backup will back them up
    under the secondary path
    
    or if on version 6.3.1.x;
    
    Downgrade client code to 6.3.1.0
    or make a copy of missing executables to a new path and
    backup/archive client filesystem backup will back them up
    under the secondary path

written by Bosse