- Capacity optimization. Data deduplication in Windows Server 2012 can store more data in a smaller physical space. It achieves higher storage efficiency than previous versions that use single Instance storage (SIS) or new technology file system (NTFS) compression. Data Deduplication uses sub-file variable-size chunking and compression, and the optimization rate for regular file servers is 2:1, while virtual data is optimized for up to 20:1.
- Scalability and performance. Windows Server 2012 Deduplication is highly scalable, leverages resources efficiently, and does not cause interference. It can run on multiple bulk master data at the same time without impacting other workloads on the server. Maintain a low impact on server workloads by controlling the consumption of CPU and memory resources. In addition, users have the flexibility to set when data deduplication should run, specify resources for de-duplication, and create policies about file selection.
- Reliability and data integrity. When you apply data deduplication, you must maintain the integrity of your data. Windows Server 2012 uses validation, consistency, and identity validation to ensure data integrity. Also, for all metadata and the most commonly referenced data, Windows Server 2012 Deduplication retains redundancy to ensure that data can be recovered when data corruption occurs.
- Combined with BranchCache improves bandwidth efficiency. By integrating with BranchCache, the same optimization techniques can also be applied to data that is transferred over the WAN to the branch office. This shortens file download times and reduces bandwidth usage.
- Use the familiar tools for optimal management. Windows Server 2012 has put optimizations in Server Manager and PowerShell. The default setting provides immediate savings and fine-tuning settings to see more benefits. Easily use PowerShell cmdlets to start an optimization job or schedule a future run of jobs. You can also use the unattended. xml file to enable the Deduplication feature and enable duplicate deletion on the selected volume, which invokes a PowerShell script and can be used with Sysprep to deploy duplicate deletions when the system is first started.
Windows Server 2012 Data deduplication Enhancements