Migrating Photos, Disk to Disk

Discussion in 'Digital Photography' started by n0d3, Apr 21, 2009.

  1. n0d3 macrumors regular

    Joined:
    Oct 12, 2006
    #1
    Basically I've got a couple of hundred gigs of photos on one disk (plus backups on another blah).

    So I'm thinking of reworking my storage options which requires me to migrate photos from Disk A to a new Disk B. I have a dualbay firewire enclosure so I'll probably copy the files with the two drives in there.

    The thing is, how do I ensure data integrity? I want to make sure the data I have eventually on Disk B at the end of the copy is exactly the same as Disk A. What do you guys recommend? CCC?
     
  2. gnd macrumors 6502a

    gnd

    Joined:
    Jun 2, 2008
    Location:
    At my cat's house
    #2
    md5

    Make md5 sums for all the photos on Disk A, copy the photos over to Disk B, then compare the md5 sums against the copied photos.
    When I archive photos to DVDs I always add md5 sums to each directory of photos and verify the burn by checking against the md5 sums. Of course, for archiving I burn three copies of each DVD and verify every copy before doing any deleting.
     
  3. n0d3 thread starter macrumors regular

    Joined:
    Oct 12, 2006
    #3
    Does CCC do this on the fly?

    Producing MD5 hashsums for everything seems a bit impractical.
     
  4. gnd macrumors 6502a

    gnd

    Joined:
    Jun 2, 2008
    Location:
    At my cat's house
    #4
    No idea what CCC is, sorry.

    It's one click per directory. I have a script that generates a file with md5 sums for all files in that directory. I have another script for checking against saved md5 sums that works recursively. So in general I do one click per directory to generate them and one click per DVD to check them.
     

Share This Page