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AnandB1

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AnandB1

15 Posts

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November 7th, 2006 23:00

backup speed over 100 mbps networker

Hi,

Can any body tell me, how to calculate the maximum bandwidth which I can get for backing up 300 GB database over 100 MBPS LAN?
  • 345

    1

    Posted November 8th, 2006 06:00

    6.5 MByte/s continuously troughput is good and realistic, peaks of 8 MByte/s are nice to have.
  • vsemaska

    194 Posts

    345

    1

    Posted November 8th, 2006 06:00

    Anand,

    Under ideal conditions a 100 Megabit LAN will transfer data at a rate of 10 Megabytes per second (I usually see less, like 9.2 MBs/sec). So a 300,000 MB database (300 GBs) will take 30,000 seconds or 8 1/3 hours (3,600 seconds in a hour).

    You can reduce the time by compressing the data before it's sent over the LAN by using compressasm. I've reduce our backup times by a few hours by doing this.

    Vic
  • ble1

    6 Operator

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    345

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    Posted November 8th, 2006 12:00

    Actually if you client can push it you will get 11MB/s without any problems (at least I see that with UNIX clients). That would give you 7.5 hours. However real question how would be how much can your client push.
  • AnandB1

    15 Posts

    345

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    Posted November 8th, 2006 20:00

    Hi Guys,


    Thanks for the information, it really helpful.


    Regards

    Anand