Initial rsync backup of large data slow to RAID 5












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I'm using rsync to copy about 28TB of images to a 36TB RAID 5.
The source has SSDs and the destination has 6 8TB 7200 SATA3 512e drives in a RAID 5 configuration.



Servers are connected over a 10G fiber connection. They are the only two machines on the switch.



Source is CentOS 6.8 destination is Ubuntu 18.04.



I understand that the HDDs are not going to get the full 6GB/s write speed but I am currently only getting 65MB/s when I was expecting somewhere in at least the 200MB/s range.



The speed started at about 72MB/s then gradually increased to 83MB/s before falling to and maintaining 65MB/s over the course of about an hour. Currently the transfer is on course for 5 days.



This seems extremely slow. I was hoping for any suggestions on speeding this up or an explanation as to why it is so slow.
Command run:



 rsync -a --info=progress2 user@sourceserver:/images/library/ /images/library








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    I'm using rsync to copy about 28TB of images to a 36TB RAID 5.
    The source has SSDs and the destination has 6 8TB 7200 SATA3 512e drives in a RAID 5 configuration.



    Servers are connected over a 10G fiber connection. They are the only two machines on the switch.



    Source is CentOS 6.8 destination is Ubuntu 18.04.



    I understand that the HDDs are not going to get the full 6GB/s write speed but I am currently only getting 65MB/s when I was expecting somewhere in at least the 200MB/s range.



    The speed started at about 72MB/s then gradually increased to 83MB/s before falling to and maintaining 65MB/s over the course of about an hour. Currently the transfer is on course for 5 days.



    This seems extremely slow. I was hoping for any suggestions on speeding this up or an explanation as to why it is so slow.
    Command run:



     rsync -a --info=progress2 user@sourceserver:/images/library/ /images/library








    share







    New contributor




    Loom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























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      I'm using rsync to copy about 28TB of images to a 36TB RAID 5.
      The source has SSDs and the destination has 6 8TB 7200 SATA3 512e drives in a RAID 5 configuration.



      Servers are connected over a 10G fiber connection. They are the only two machines on the switch.



      Source is CentOS 6.8 destination is Ubuntu 18.04.



      I understand that the HDDs are not going to get the full 6GB/s write speed but I am currently only getting 65MB/s when I was expecting somewhere in at least the 200MB/s range.



      The speed started at about 72MB/s then gradually increased to 83MB/s before falling to and maintaining 65MB/s over the course of about an hour. Currently the transfer is on course for 5 days.



      This seems extremely slow. I was hoping for any suggestions on speeding this up or an explanation as to why it is so slow.
      Command run:



       rsync -a --info=progress2 user@sourceserver:/images/library/ /images/library








      share







      New contributor




      Loom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      I'm using rsync to copy about 28TB of images to a 36TB RAID 5.
      The source has SSDs and the destination has 6 8TB 7200 SATA3 512e drives in a RAID 5 configuration.



      Servers are connected over a 10G fiber connection. They are the only two machines on the switch.



      Source is CentOS 6.8 destination is Ubuntu 18.04.



      I understand that the HDDs are not going to get the full 6GB/s write speed but I am currently only getting 65MB/s when I was expecting somewhere in at least the 200MB/s range.



      The speed started at about 72MB/s then gradually increased to 83MB/s before falling to and maintaining 65MB/s over the course of about an hour. Currently the transfer is on course for 5 days.



      This seems extremely slow. I was hoping for any suggestions on speeding this up or an explanation as to why it is so slow.
      Command run:



       rsync -a --info=progress2 user@sourceserver:/images/library/ /images/library






      rsync





      share







      New contributor




      Loom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Loom is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






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      asked 9 mins ago









      LoomLoom

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