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How long to backup 1TB of data? RRS feed

  • Question

  • I am trying to back up my HTPC.

    Server is Dual Xeon 3.0ghz proc, 2gb of ram
    HTPC is dual core 2.8 4gb of ram

    1TB of data approx

    Its at 77% and hour 26.... is this normal?
    Thursday, August 6, 2009 2:18 PM

All replies

  • If you are backing up to a USB 2.0 drive....yes.....around 24 - 30 hours can be the norm.
    Thursday, August 6, 2009 3:31 PM
  • Server has internal SATA drives, backing up over the network.

    Thanks
    Zach
    Thursday, August 6, 2009 3:42 PM
  • How fast is your network... 10/100 or 10/100/1000? What is the speed of your NIC in the WHS? How many routers are in the path? Is there a lot of network activity?

    If both computers are on a gigabit network (10/100/1000), with gigabit routers in the middle, I would suggest it is slow. If it is 100 meg (10/100) network or that is the max speed somewhere between computer A and computer B, then I would think 30 hours would be a correct estimate.

    If memory serves there are 8 bits to the byte. So that makes 8,000,000,000,000 bits on your 1Terabyte drive. A 100 megabit connection "if" maximum was possible would take 22 + hours. Considering that it would most likely be well under that (75-50 megabit maybe) then 30+ hours would probablly be correct.... Especially considering that your data most lilkely consists of lots of individual files and not one big one.

    I am not a network expert, but have some experience transferring large amounts of data.
    Thursday, August 6, 2009 7:43 PM
  • Mr. Stu

    Thanks for the input. Its 10/100. Gigabit nic on the server but the rest of the equipment is 100meg.

     Glad to hear things are moving as they should.

    Thanks!
    Zach
    Thursday, August 6, 2009 8:01 PM
  • I won't guarantee my math, but let us know how long it takes; as it might help somebody else one day.


    Thursday, August 6, 2009 10:12 PM
  • I won't guarantee my math, but let us know how long it takes; as it might help somebody else one day.



    Your math is spot on.  :)  I got 22.222222222222222....... hours at the maximum throughput (100 Mb/s).
    Friday, August 7, 2009 4:12 AM
    Moderator