Microsoft Windows 2012 Server Data Deduplication

Article ID: DD0065 Microsoft Windows 2012 Server Data Deduplication

Title

Microsoft Windows 2012 Server Data Deduplication

Reference

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.