5 Replies Latest reply on Dec 13, 2016 12:07 PM by jxchappell

    NetFlow (NTA) Module Database sizing

    bao@xxxlutz.at

      Hi you all,

       

      i have a question about NTA and hope someone of can give me an Answer about it

      We plan to buy NTA and now we would like to size the Flow Database Server.

       

      We have 317 Devices which are sending about 15.000 flows per second.

       

      Now the Question is, how big the Database will be and what amount of ram and CPU the server must have? (And are there some things about NTA which i should know?)

      (In the Knowledgebase i found an article where they are saying that for 1000 flows/s we should plan 8GB of additional Storage - that would be 120GB - am i right?)

       

      Thanks for your Answers!

       

      br

      Alois

        • Re: NetFlow (NTA) Module Database sizing
          HerrDoktor

          Hi Mr. Baumgartner,

           

          we have a few customers with approx the same amount of Flows they have a 12 Core VM with 64GB RAM. This should be OK for your environment.

           

          Kind Regards,

          Holger Mundt

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          • Re: NetFlow (NTA) Module Database sizing
            scubadvr

            For your storage question, I manage two separate instances of SolarWinds.  We upgraded to NTA4.2 and the Flow Storage datastore back in August.  Since then, I've been tracking the flow storage size.  Since September, the Flow Database consumes roughly the storage below (it may vary slightly week to week based on increasing/decreasing number of flows, but this is a good average):

            Instance 1 - ~70,000 flows per second - 360GB Storage

            Instance 2 - ~32,000 flows per second - 200GB Storage

             

            Since it doesn't seem to be entirely linear, you may want to allocate more than 120GB just to allow for growth and to ensure you have enough space.

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            • Re: NetFlow (NTA) Module Database sizing
              bao@xxxlutz.at

              Thanks for your Answers!

              • Re: NetFlow (NTA) Module Database sizing
                owenmurf

                There is a KB article on FSBD sizing which may also be of interest:

                https://support.solarwinds.com/Success_Center/Netflow_Traffic_Analyzer_(NTA)/Determine_the_right_size_of_NTA_Flow_Storage_Drive

                 

                Automatic:

                 

                1. Login to the SolarWinds Web Console > Settings.
                2. Go to the product's specific Settings > NTA settings > Database Settings > NTA Flow storage Database Settings.
                3. Click Database Size > Calculate.

                You should be able to see the size of your NTA database and the projected size based on your retention period.

                 

                Manual:

                1. Login to SolarWinds Web Console > Settings.
                2. Go to the product's specific settings > NTA settings > Database Settings > NTA Flow storage Database Settings > Location > Remote Access that Server.
                3. On the NTA flow storage server, click Start > Search > NTA flow storage configurator.
                4. Launch NTA flow storage configurator, and copy the path where it saves.
                5. Open the flow folder, and copy all folders in the following format with the numbers being the date.
                  TN#2016-04-11@0_0
                6. Click the Date yesterday > All folder files, and right-click Properties.
                7. Check the Size of disk.
                8. Multiply it to the Database retention you have.
                  Example: 1GB/day X 30 days (retention) = 30 GB
                • Re: NetFlow (NTA) Module Database sizing
                  jxchappell

                  I suggest you have 500GB to 1 TB of storage available and ready..this data grows fast, and I can pretty much guarantee you're going to use it

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