Sep 23
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IC92873: SOME EXECUTABLE FILES FOR WINDOWS SERVICES NOT BACKED UP ON WINDOWS 8 AND WINDOWS SERVER 2012APAR Comments Off on IC92873: SOME EXECUTABLE FILES FOR WINDOWS SERVICES NOT BACKED UP ON WINDOWS 8 AND WINDOWS SERVER 2012
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Error description
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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
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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