Microsoft Windows 2012 Server Data Deduplication
Article ID: DD0065 Microsoft Windows 2012 Server Data Deduplication
In Windows Server 2012, Microsoft introduced a Data Deduplication feature to efficiently store, transfer and backup less data. This feature was designed for primary, locally-mounted NTFS data volumes. It can also be used as a backup store.
Used as a data source, CommVault supports:
- Rehydrated file level backup and restore.
- Full volume block-level backup and restore.
- Full volume Image-level backup and restore.
Used as a backup store, CommVault supports:
- Use with and without CommVault deduplication.
CommVault Deduplication has many advantages over Windows 2012 data deduplication. CommVault Deduplication:
- Stores up to 512 TB of deduplicated data with multiple partitions vs 64 TB for maximum supported volume size for Windows Data Deduplication.
- Is able to use shared storage across multiple file and operating systems – not just local NTFS volumes on Windows 2012 server.
- Is done as inline operation. Windows Data Deduplication requires the full disk space to land the data resulting in higher disk space requirement until deduplication can occur.
- Is application aware to achieve maximum deduplication rate.
- Features Client-side deduplication which distributes CPU resource demand and reduces network volume during backup.
- Features DASH copy of deduplicated blocks which reduces network volume during auxiliary copy.
- Features DASH full of deduplicated blocks which reduces demand on client resources, network volume, and disk I/O during backup.