# Sensor FAQ

### **Getting Started**

<details>

<summary>How do I install Sensor? How long will it take?</summary>

Installing Datafy Sensor in your environment can be done with a 1-line command, and takes less then 10 minutes. To get started, follow the steps in our [installation guide](/set-up-and-installation/datafy-installation.md)

</details>

<details>

<summary>Will installing Sensor cause any downtime?</summary>

No, installing Datafy Sensor does not require any downtime at all

</details>

<details>

<summary>Where can I install Datafy Sensor? Which instances and volumes types are supported?</summary>

Datafy Sensor can be installed on any EC2 or EKS instance using a Linux operating system.

See the full list of [Supported Infrastructure](/set-up-and-installation/supported-infrastructure.md), which details:

* Supported OSs
* Filesystems
* Instance types

</details>

<details>

<summary>What can I learn from Datafy Sensor?</summary>

After installing Datafy Sensor, you will be able to view the utilization of all volumes attached to instances where Sensor was installed in the [Datafy app](https://app.datafy.io/). Utilization over time is available in the [Reports](https://app.datafy.io/reports) tab.

You can filter the results by various parameters, including volume tags, to compare utilization across different use-cases in your account.

</details>

<details>

<summary>Is it really free?</summary>

Yes, it is! You can use Datafy Sensor for as long as you'd like, free of charge

</details>

### Privacy and Security

<details>

<summary>Which AWS permissions does Datafy require? Why do you need them?</summary>

Datafy Sensor requires permissions to collect metadata about the instances and volumes in your account. We use this to associate the usage data collected by the agent with the relevant EBS volume and instance IDs, and to provide an indication whether the volumes are candidates for autoscaling.

All of the permissions required for the operation of Datafy Sensor are read-only. The full list of permissions is detailed in the [permissions setup instructions](/set-up-and-installation/datafy-installation/permissions-configuration.md).

</details>

<details>

<summary>Can Datafy access my data?</summary>

Datafy doesn't access, read, or use any of the data saved in your EBS volumes. The usage data collected by Datafy Sensor is based on the usage reported by the volumes' filesystems.

</details>

<details>

<summary>What information is collected by Datafy?</summary>

Datafy's application backend collects metadata about instances and volumes in your account, and the overall usage of each volume monitored by Datafy Sensor. You can see this data in the [Datafy app](https://app.datafy.io/). The data stored in your volumes is not accessed by Datafy and always remains in your account.

</details>


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