John Siracusa and Dan Benjamin talk more about file systems: the origins of Btrfs, how file systems might change in the new age of SSDs, the possibility of a Grand Unification of storage and memory subsystems, and why snapshots, clones, block-level diffs, and deduplication are awesome features of ZFS that would make Time Machine a lot better than it is today. The show ends with John's predictions for the new iPad, which we all assume will be announced at the Apple press event next week.

Links for this episode:

• NetApp and Oracle Agree to Dismiss Lawsuits - NetApp.com
  
• A short history of btrfs - LWN.net
  
• IntegrityChecker - diglloydTools
  
• Clusters: Seamless File Compression
  
• HFS+ file compression in Mac OS X 10.6 Snow Leopard - Ars Technica
  
• Flash memory: Block erasure - Wikipedia
  
• FSEvents in Mac OS X 10.5 Leopard - Ars Technica
  
• ZFS Deduplication - Jeff Bonwick
  
• ZFS: Snapshots and clones - Wikipedia
  
• A Conversation with Jeff Bonwick and Bill Moore - ACM Queue
  
• ZFS - The Last Word in Filesystems
  
• The SSD Anthology: Understanding SSDs and New Drives from OCZ - AnandTech.com
  
• Thunderbolt at TED2012 - Duncan Davidson
  

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