[p4] backup strategy

Dave Lewis dlewis at vignette.com
Fri Mar 18 13:43:39 PST 2005


  > > -----Original Message-----
  > > From: John-Mason P. Shackelford [mailto:john-mason at shackelford.org]
  > > 
  > > A little more info about how I performed the untar:
  > > 
  > > I ran $ tar -xvf depot_files.tar > /dev/null so I wasn't being slowed 
  > > down by terminal output.
  > 
  > Wasn't it still formatting the output, though?
  > Might be a little faster without the v at all.
  > 
  > > There was also no copying across a 
  > > network or 
  > > even across a file system involved since I exploded the tar 
  > > to the same 
  > > directory where the tarball lived.
  > 
  > Exploding to a second physical drive might be faster -
  > if the source and destination are on the same drive,
  > it could waste a lot of seek time. -Wm

yes, and tar also slows down a lot when its creating lots of
little files.  Also, if a directory has about 1,000 files, the
file system slowdown is very significent. (on unix)

dave



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