Unconfigured Ad

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • NextGenSeq
    Senior Member
    • Apr 2009
    • 482

    #1

    FAT Drive Truncating Files to 4GB

    I am beginning to archive old data and have a 2TB USB FAT formatted drive for this purpose.

    However, any file that is larger than 4GB is truncated to 4GB. Apparently FAT drives won't copy files larger than this.

    I can compress the files and copy them but soon even the compressed data files will be larger than 4GB.

    Is there an easy solution around this?

    (Note I can't reformat to NTFS since the data is on a Red Hat computer and they don't support NTFS).
  • Thomas Doktor
    Senior Member
    • Apr 2009
    • 105

    #2
    Do you plan to use the drive on a non-linux/unix-variant system? Otherwise just format with a filesystem supported by linux, e.g. ext3.

    Comment

    • NextGenSeq
      Senior Member
      • Apr 2009
      • 482

      #3
      Ideally it will be able to be mount on Windows computers also.

      Comment

      • dawe
        Senior Member
        • Apr 2009
        • 258

        #4
        Originally posted by NextGenSeq View Post
        I am beginning to archive old data and have a 2TB USB FAT formatted drive for this purpose.

        However, any file that is larger than 4GB is truncated to 4GB. Apparently FAT drives won't copy files larger than this.

        I can compress the files and copy them but soon even the compressed data files will be larger than 4GB.

        Is there an easy solution around this?

        (Note I can't reformat to NTFS since the data is on a Red Hat computer and they don't support NTFS).
        NTFS is an option, as long as you're able to run ntfs-3g on linux (which is pretty stable).
        BTW, FAT capabilities are well known, to me it's a deprecated file system, absolutely unsuitable for modern data throughput. Compressing is not an option, you will lose a lot of time for a workaround.

        d

        Comment

        • rmdavies
          Member
          • Dec 2009
          • 13

          #5
          You can get various drivers that claim to be able to mount or browse ext2/ext3 partitions on Windows:







          Hopefully at least one of them would work for you.

          Alternatively, you could use the unix 'split' command to break the big files into chunks on the FAT partition.

          Comment

          • NextGenSeq
            Senior Member
            • Apr 2009
            • 482

            #6
            Thanks I'll look into drivers for mounting ext2/ext3 on windows.

            I may be mistaken but most USB thumb drives are also FAT formatted aren't they?

            I had this same problem with them.

            Comment

            • dawe
              Senior Member
              • Apr 2009
              • 258

              #7
              Originally posted by NextGenSeq View Post
              I may be mistaken but most USB thumb drives are also FAT formatted aren't they?
              Unfortunately yes...

              Comment

              • cariaso
                Member
                • Jan 2008
                • 31

                #8
                crossposted



                I've offered an additional response, suggesting NTFS and FileSpanning options.

                please forgive the well intentioned thread hijacking

                Comment

                Latest Articles

                Collapse

                • SEQadmin2
                  Multiomic Liquid Biopsy: What DNA/RNA Panels Reveal That DNA Alone Can’t
                  by SEQadmin2



                  Tumors contain complex mixtures of cell populations that evolve in response to treatment and host-specific factors. Tissue biopsies provide only static snapshots of a tumor’s state. But what if we could follow that evolution over time using a minimally invasive technique?

                  Liquid biopsies can detect tumor-derived material circulating in the bloodstream, providing a way to study treatment response, detect emerging resistance, and discover new biomarkers. Circulating
                  ...
                  10-14-2026, 09:55 AM
                • SEQadmin2
                  New Genomics Technologies Take Aim at Long-Standing Limits
                  by SEQadmin2


                  Researchers using sequencing and genomics tools often have to make trade-offs. They can choose between speed or scale, short reads or long-range information, or targeted panels or a view of the whole transcriptome. New technologies that have been released this year are built to address those tough choices.

                  We asked six companies the same four questions to learn about their latest products. The new technologies bring a lot to the table, including rethinking sequencing
                  ...
                  09-28-2026, 10:25 AM

                ad_right_rmr

                Collapse

                News

                Collapse

                Topics Statistics Last Post
                Started by SEQadmin2, 10-15-2026, 10:52 AM
                0 responses
                26 views
                0 reactions
                Last Post SEQadmin2  
                Started by SEQadmin2, 10-14-2026, 05:39 AM
                0 responses
                32 views
                0 reactions
                Last Post SEQadmin2  
                Started by SEQadmin2, 10-13-2026, 09:56 AM
                0 responses
                31 views
                0 reactions
                Last Post SEQadmin2  
                Started by SEQadmin2, 10-09-2026, 11:14 AM
                0 responses
                28 views
                0 reactions
                Last Post SEQadmin2  
                Working...