> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blockscout.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Hardware & Hosting Requirements

Resource requirements may vary based on chain size and other parameters. This mainly impacts [database storage](/setup/requirements/database-storage-requirements) requirements. Basic [prerequisites](/setup/requirements/requirements) and settings can be found throughout the [Information and Settings](/setup/information-and-settings) section for developers.

BlockScout requires a full archive node to import every state change for every address on the target network.

## Recommended Base Hardware

EVM chains can differ in size and requirements, these are the recommendations for optimal performance.

| CPU | 16 core, 32 thread |
| --- | ------------------ |
| RAM | 128GB              |

## Hosting Requirements

Minimums are listed for an AWS Cloud instance and can be inferred to other hosting providers.

|                               |                                                                                                                                                                                                                                                                      |
| ----------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Application                   | • 1x EC2 m5a.xlarge instance running Linux<br /><br />• 8GB of EBS General Purpose SSD (NVMe)                                                                                                                                                                        |
| Database                      | • 1x RDS Database running on db.t3.large using PostgreSQL v14+<br /><br />• 500GB of General Purpose SSD (depending on chain size)<br /><br />• See [Database Storage Requirements](/setup/requirements/database-storage-requirements) for chain-relevant baselines. |
| Amazon Elastic Load Balancing | • Average 100 new connections/sec per Elastic Load Balancer                                                                                                                                                                                                          |

<Info>
  Requirements will vary based on chain. For example, these are the recommended requirements for a Harmony Explorer Node:

  **Setup**: AWS i3en.12xlarge or equivalent, with local disk storage **Storage**: \~24TB (4x NVMe SSD) is recommended for Archival Explorer Nodes on Shard 0 **OS**: Latest Ubuntu Linux (LTS Version) **Network**: 100M+ bandwidth
</Info>

<Tip>
  For additional information, see:

  * [General Requirements:](/setup/requirements/requirements) Software required for deployment

  * [Database Storage Requirements](/setup/requirements/database-storage-requirements): Storage required for common chains to give a sense of needed storage

  * [Node Tracing Requirements](/setup/requirements/node-tracing-json-rpc-requirements): JSON RPC methods

  * [Client Setting Requirements](/setup/requirements/client-settings): Settings related to client implementations (ie Geth, OpenEthereum, etc)
</Tip>