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The ext3cow File System:: :: Articles News Information

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The ext3cow File System

Ext3cow is an open-source, versioning file system based on ext3.  It provides a time-shifting interface that allows a real-time and continuous view of the past.  This allows users to access their file system as it appeared at any point in time.  Click here for a usage example.
 
Ext3cow was designed as a platform for regulatory compliance, and has been used to implement secure deletion, authenticated encryption, and incremental authentication. See the publications page for more details.
 
Some advantages of ext3cow:
  1. • It does not pollute the name space with named versions
  2. • It has low storage and performance overhead
  3. • It is totally modular, requiring no changes to kernel or VFS interfaces