> For the complete documentation index, see [llms.txt](https://documentation.2pintsoftware.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.2pintsoftware.com/stifler/setup/prerequisites/hardware-requirements.md).

# Hardware requirements

The following table can be used as a summarized view of the hardware requirements for StifleR.

<table><thead><tr><th width="231">Size</th><th width="97">CPU</th><th width="113">Memory</th><th width="137">NIC</th><th>Disk</th></tr></thead><tbody><tr><td>Under 10,000 clients</td><td>4 cores</td><td>8GB</td><td>Virtual / 1GB</td><td>1x SSD for DBs</td></tr><tr><td>10,000 — 20,000 clients</td><td>8 cores</td><td>16GB</td><td>1GB / 10GB</td><td>2x SSD for DBs</td></tr><tr><td>20,000 — 50,000 clients</td><td>16 cores</td><td>32GB</td><td>10GB</td><td>4x SSD for DBs</td></tr><tr><td>50,000 — 100,000 clients</td><td>32 cores</td><td>64GB</td><td>2x10GB</td><td>6x SSD for DBs</td></tr><tr><td>100,000 —  200,000 clients</td><td>48 cores</td><td>256GB</td><td>4x10GB</td><td>8x SSD for DBs</td></tr></tbody></table>

### CPU

StifleR is CPU intensive. Since StifleR does not use that many threads, a higher frequency (GHz) is recommended. We recommend at least a 2.4GHz processor with 8 cores. Don’t forget that most CPU’s must also handle some of the network connectivity management.

### Memory

StifleR writes a lot of historical data to databases, and also maintains in-RAM memory objects. Since each connection and all connection data is stored in RAM a decent allocation of RAM is recommended but 32GB should be plenty for most installations.

### Disk

StifleR saves a lot of information to ESENT databases, especially with the System Resource Tracking features enabled. Fast SSD disks are preferred for housing these databases.

### Network Connectivity

Each client initiates a non-managed SignalR client connection (web sockets) to the server, so if you want 100k clients to connect to a single server you need to beef up the network connectivity.

If you are supporting a large number of clients, you probably want dual or quad 10Gb/s NIC’s for your StifleR server. This will ensure that the NIC’s have enough power to manage the large number of connections.

### Redundancy

Multiple StifleR servers can be configured for larger enterprises so that clients can fail-over to a second server should the primary server become unavailable.

For larger installations we recommend splitting the load across several StifleR servers. For example one server per geographical region.


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