Data and transaction logs are stored in multi-tiered storage media. As the size of the data set has been, and continues to be, growing exponentially, scalability and availability have necessitated auto-tiering for big data storage management. Auto-tiering solutions do not keep track of where the data is stored which poses new challenges to secure data storage.
Everyday, we create 2.5 quitillion bytes of data - so much that 90% of the data in the world today has been created in the last two years alone. Security and Privacy issues are magnified by velocity, volume and variety of big data.