Diff for /wikisrc/projects/project/defrag_ffs.mdwn between versions 1.3 and 1.4

version 1.3, 2014/02/27 06:30:24 version 1.4, 2014/02/27 06:33:07
Line 11  difficulty="medium" Line 11  difficulty="medium"
   
 description="""  description="""
 Heavily used file systems tend to spread the blocks all over the disk,  Heavily used file systems tend to spread the blocks all over the disk,
 especially if free space is scarce. Traditionally dump/restore have been used to  especially if free space is scarce. The traditional fix for this is to
 recreate the file system, but this is not acceptable for current disk  use dump, newfs, and restore to rebuild a volume; however, this is not
 sizes. Since resize_ffs has to relocate blocks during shrinking anyway, it  acceptable for current disk sizes.
 should be possible to extend it to full reordering and defragmentation.  
   The resize_ffs code already contains logic for relocating blocks, as
   it needs to be able to do that to shrink a volume; it is likely that
   it would serve nicely as a starting point for a defragmenting tool.
 """  """
 ]]  ]]

Removed from v.1.3  
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  Added in v.1.4


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