# Installation

## Server

Exivity can be installed on any Microsoft Windows 2012 R2 or higher server in your on premise data center or in the cloud. Depending on the amount of data, Exivity recommends the following system configuration:

| Deployment | Data sources | CUPR   | CPU     | Memory | Storage |
| ---------- | ------------ | ------ | ------- | ------ | ------- |
| *Tiny*     | 2            | 1 000  | 1 Core  | 4 GB   | 25 GB   |
| *Small*    | 2            | 2 000  | 2 cores | 8 GB   | 50 GB   |
| *Medium*   | 4            | 5 000  | 4 cores | 16 GB  | 100 GB  |
| *Large*    | 8            | 15 000 | 8 cores | 32 GB  | 200 GB  |

Both the Data sources and CUPR in above tables are recommended limits. All systems should have a standard C: OS drive. The storage recommendation in the table above is for a D: drive, which preferably is SSD.

## Client

The Exivity front-end runs fine in these desktop browsers (with at least the specified version):

* Google Chrome 63+
* Chromium 66+
* Microsoft Edge 41+ (EdgeHTML 16+)
* Opera 50+
* Mozilla Firefox 65+ (support added in Exivity v2.10.0)

We don't support Apple Safari at the moment due to missing features in this browser.

{% hint style="info" %}
We aim to provide the fastest metering and billing solution available today, and this means we have to rely on modern (web) technologies. Part of our speed comes from pre-processing the raw data, and part comes from having almost all processed data available right in the browser, and streaming the missing pieces on request. 

To efficiently and reliably achieve this we use some very specific technologies not yet available in all browsers. Most notably, Safari doesn't support all features we need to build our next-generation platform yet. When they do catch up, we'll fully support those browsers.

Until that time, please choose from Chrome/Chromium, Firefox, Edge or Opera.
{% endhint %}


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