Wishlist of HAMMER

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+HAMMER FS specific wishlist:
+
+* <tt>cp</tt> doesn't duplicate a file, instead it will reuse the existing ondisk data.
+
+* transparent per-PFS compression
+
+* filesystem growing and shrinking (growing is partially implemented, but needs some help).
+
+* RAID-features: e.g. keep multiple copies of (certain) files on disk (per-PFS setting?). 
+  This could also be performed as a background task. In case multiple copies exists, 
+  the filesystem would try one after the other in case of a CRC failure.
+
+* De-duplication of data: Blocks with same content are stored only once. Could also be performed as
+  a background task.
+
+* Clustering