Also you can use dump|restore. don't bother to write it out anywhere, just dump to stdout and restore from stdin. restore is filesystem independent. - Kevin On Mon, 9 Aug 2004 11:51:12 -0700, Kevin Wang <rightsock@xxxxxxxxx> wrote: > cpio handles hard links, but imho rsync is still probably your best > bet, since it's designed to run incrementally. > > Otherwise, it's time to write your own tool. For reference, how many > inodes? (df -i) You may be running out of memory. > > - Kevin > > > > On Mon, 9 Aug 2004 11:47:02 -0700, Keith Lofstrom <keithl@xxxxxxxxx> wrote: > > > > I need a fast hard disk copy tool, and am looking for suggestions. > > > > I have a hard drive partition with 170GB of data in it. I want to copy > > the data into a partition (made with more inodes) on another drive. > > > > Of course, since I am changing the file system on the target, I > > cannot do a simple dd for an exact copy of the partition. > > > > A file-by-file copy would still be easy, except(!) that the data > > has an enormous number of hard links in it, 120 to 150 hard links > > per file. This slows down the copy by a corresponding factor with > > the common tools. For example, for a 126MB directory, using the > > usual copy procedures, with 120 hard links, the run times are: > > > > real system > > cp -a: 17m 22s 25s > > piped tar: 18m 10s 26s > > rsync -a: 37m 30s 2m 40s > > > > Extrapolating to 170GB, that is 400 hours for the cp -a , or more > > than two weeks (!). I have been running a "cp -a" for 4 days now, > > and am about 40% done, so the estimate is not too far off. As far > > as the standard tools can detect, I am moving more than 20 terabytes, > > so without a smart tool that understands hard links this will take > > a very long time. > > > > So, does anyone have an exotic disk copy tool that can do this more > > efficiently? I would like to use the target disk soon, before > > september at least! > > > > Keith > > > > -- > > Keith Lofstrom keithl@xxxxxxxx Voice (503)-520-1993 > > KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon" > > Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs > > > > -- > > fedora-list mailing list > > fedora-list@xxxxxxxxxx > > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > > >
