Hi,
Backup and recovery using SIS has the following requirements:
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The backup software used must support SIS-enabled volumes.
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The SIS volume, SIS Common Store folder, and reparse points to the files must be restored to a Windows 2000 NTFS version 5.0 or later file system or partition
that supports reparse points or junction points.
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The Single Instance Storage Filter must be installed and enabled to access the data in the SIS volume.
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The backup program must be capable and configured to backup and restore the reparse points or junction points (links) to the files, and the SIS volume and the
SIS Common Store folder must be selected.
Based on the current situation, you will need to install Windows Storage Server 2008 R2 or try to restore to another Windows Storage Server 2003 R2 and transfer the data to Windows
Server 2008 R2 Standard.
For more information, please refer to the following Microsoft TechNet article:
Single Instance Storage (SIS)
http://technet.microsoft.com/en-us/library/gg232683(v=WS.10).aspxRegards,Arthur Li
TechNet Community Support
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