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Fog Upload Weird Issue

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FOG Problems
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  • C
    Chris Whiteley
    last edited by Jun 16, 2014, 3:57 PM

    Hey All,

    I am curious if anyone has run into this problem other than me… I have a fog server running on Ubuntu 12.04 LTS Server Edition on VSphere 5 Virtual Machine and I have a speed issue with uploading. When the upload first starts, it is blazing fast at about 1.74 Gb/Min and then after 38 seconds it just stops for 44 seconds, then starts again blazing fast for another 38 seconds and repeats this until the upload is done. Is there a reason why it would do this? It has been with both partimage and partclone.

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    • T
      Tom Elliott
      last edited by Jun 16, 2014, 4:02 PM

      Usually, this is a networking problem. Does your VM have SSD on it? SSD’s work by “caching” the data until the buffer is full, once the buffer is full, it stop’s receiving data so it can write the information onto the disk. This may account for some of your “pauses”.

      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

      Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

      Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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      • C
        Chris Whiteley
        last edited by Jun 16, 2014, 4:04 PM

        We have the three VM hosts setup through 8GB Fiber Channel to a SAN chassis that has 600GB 15K SAS drives in it and that’s where the storage is

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        • T
          Tom Elliott
          last edited by Jun 16, 2014, 4:06 PM

          Then it’s quite possible you’re seeing the “breaking” point of the hard drives. They can’t keep up with writing the data to disk.

          Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

          Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

          Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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          • C
            Chris Whiteley
            last edited by Jun 16, 2014, 4:13 PM

            Ok, because the actual downloading of the image to the computers don’t lag whatsoever, so that’s why I was curious why the upload did it.

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            • T
              Tom Elliott
              last edited by Jun 16, 2014, 4:15 PM

              I don’t know the exact nature. It may not be a cap persay, but more possibly that the System’s CPU/RAM is waiting? I don’t know. You could try adding more CPU’s/RAM to the VM? I don’t know what else to give.

              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

              Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

              Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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              • C
                Chris Whiteley
                last edited by Jun 16, 2014, 6:17 PM

                Thank you Tom, I will try and do that and see if I can get it by adding more CPU’s and more Memory.

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