title: What are the various methods of optimizing storage space used when we uses TARMK based repository
body: <p>What is meant by TAR compaction in terms of an AEM repository supported by TARMK ( AEM 6.x) ? Also What is the difference between <strong>online</strong> TAR Compaction and <strong>offline</strong> TAR compaction and how can we perform the two?
  Which one of the two is more suitable to which use case?</p>