DS-9 Netflow VM Sizing Specifications
--------------------------------------


.. tabularcolumns:: |p{1.5cm}|p{1cm}|p{1cm}|p{1.5cm}|p{1.5cm}|p{3.5cm}|p{1.5cm}|


+--------+--------+-------+--------+---------+-----------+---------+
|        | Cores  | CPU   | Memory | Storage | Storage   |         |
| Size   | (vCPU) | Spec  | (Gb)   | (Gb)    | Spec      | Network |
|        |        | (Ghz) |        |         |           |         |
+========+========+=======+========+=========+===========+=========+
|        |        |       |        |         | SSD       |         |
|        |        |       |        |         | preferred |         |
|        |        |       |        |         |           |         |
|        |        |       |        |         | Thick     |         |
| Small  |        |       |        |         | Eager     |         |
|        | 12     | 2,8   | 32     | 500     | Zero      | 1GB     |
|        |        |       |        |         |           |         |
|        |        |       |        |         | 15k HDD   |         |
|        |        |       |        |         |           |         |
|        |        |       |        |         | 1500 IOPS |         |
+--------+--------+-------+--------+---------+-----------+---------+
|        |        |       |        |         | SSD       |         |
|        |        |       |        |         | preferred |         |
|        |        |       |        |         |           |         |
|        |        |       |        |         | Thick     |         |
| Medium |        |       |        |         | Eager     |         |
|        | 16     | 2,8   | 64     | 500     | Zero      | 1GB     |
|        |        |       |        |         |           |         |
|        |        |       |        |         | 15k HDD   |         |
|        |        |       |        |         |           |         |
|        |        |       |        |         | 1500 IOPS |         |
+--------+--------+-------+--------+---------+-----------+---------+
|        |        |       |        |         | SSD       |         |
|        |        |       |        |         | preferred |         |
|        |        |       |        |         |           |         |
|        |        |       |        |         | Thick     |         |
| Large  |        |       |        |         | Eager     |         |
|        | 16     | 2,8   | 64     | 500     | Zero      | 1GB     |
|        |        |       |        |         |           |         |
|        |        |       |        |         | 15k HDD   |         |
|        |        |       |        |         |           |         |
|        |        |       |        |         | 1500 IOPS |         |
+--------+--------+-------+--------+---------+-----------+---------+


Scalability questions to consider:

* Number of devices      
* Number of flows per second        
* Storage retention Period       
* Local attached storage an not Network attached     

Notes:

* Larger then 200k flows per second requires distributed netflow servers
* The CPU and RAM needs to be reserved at top priority (all the cores and memory)
* Bandwidth between devices and Arbitrators needs to capable of data flows


* The CPU an RAM needs to be reserved a
  top priority (all the cores and memory)   
* Bandwidth between devices an Arbitrator
  needs to capable of data flows