# Wazuh pricing plan comparison in VK Cloud
> Compare Wazuh pricing plans in VK Cloud - differences in agent count, storage volume, monitoring features, and level of technical support
Source: https://opennix.org/en/docs/vk/wazuh/wazuh-pricing-comparison/
## Plans
| | Economy Class | Business Class | First Class |
|:--------------------------------------:|:--------------------:|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------:|:----------------------------------------------------------------------------------------------------------------------:|
| Standard rules | + | + | + |
| VK Cloud integration | + | + | + |
| High availability | - | + | + |
| Technical support | Standard | Option to add extended technical support | Extended technical support |
| Rules and decoders on customer request | Customer | OpenNix when extended technical support is purchased | OpenNix |
| Integration with third-party systems | Customer | OpenNix when extended technical support is purchased | OpenNix |
| Consulting and support | Email, standard SLA | For email with a standard SLA, the response time to support requests is 8-16 hours.
With extended support enabled, requests are handled with priority. | Priority support guarantees fast response and preferential resolution of all issues and questions that arise. |
| Response time | 8-16 business hours | - 8-16 business hours for standard support
- 1 business hour for extended support | 1 business hour |
| | | | |
## Architectural differences
The "Economy Class" plan is intended for small companies and represents a simple "all in one" architecture. This plan provides a single virtual machine that is fully ready to use, with all components configured during product deployment.
Before getting started, it is important for the customer to consider the following parameters:
- Number of sources
- Number of events
- Event retention period
**Attention:** Using all-in-one for more than 80-100 sources is not recommended. Under heavy write load, performance issues may occur.
Example:
The plan is to collect events from 50 sources and retain the data for 90 days. The data size is calculated using the following formula:
_Amount of memory_
**Formula**
```text
Number of sources * 180 + (Number of sources * 180 * 0.25) = minimum amount of memory
```
_For 50 sources_
```text
(50 * 180 + (50*180*0.25))/1024=11
```
Minimum amount of memory: 11 GB
_Disk size_
**Formula**
```text
(Number of sources * 1.75 * 1.5) * 0.7=approximate disk size
```
For 50 sources
```text
(50 * 1.75 * 1.5) * 0.7 = 187GB
```
If you plan to analyze events only for VK Cloud
| | Minimum | Recommended |
|--------------------|------------:|----------------:|
| CPU | 6 | 8 |
| RAM | 8 GB | 12 GB |
| Disk size | 25 GB | 100GB |
The "Business Class" and "First Class" plans are intended for medium and large companies, as well as for those who require high availability. These plans represent a distributed architecture that ensures reliability and scalability.
Fig. 1. Architecture