# Connecting to Storage

Alluxio connects to a wide variety of storage systems, known as Under File Systems (UFS), allowing you to unify and accelerate access to your existing data. This section provides guides for configuring Alluxio with different cloud object stores and on-premises storage systems.

## Supported Storage Systems

Below is a list of officially supported UFSs. Click on any storage system to see its specific configuration guide.

### Cloud Object Storage

| Storage System                         | Description                                                   | Guide                                                                               |
| -------------------------------------- | ------------------------------------------------------------- | ----------------------------------------------------------------------------------- |
| **Amazon S3**                          | The standard guide for connecting to Amazon S3.               | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/s3)               |
| **Google Cloud Storage (GCS)**         | Guide for connecting to Google Cloud Storage.                 | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/gcs)              |
| **Azure Blob Storage**                 | Guide for connecting to Azure Blob Storage.                   | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/azure-blob-store) |
| **Alibaba Cloud OSS**                  | Guide for connecting to Alibaba Cloud Object Storage Service. | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/aliyun-oss)       |
| **Tencent Cloud Object Storage (COS)** | Guide for connecting to Tencent Cloud's object storage.       | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/cos)              |
| **Baidu Object Storage (BOS)**         | Guide for connecting to Baidu Cloud's object storage.         | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/bos)              |
| **Volcengine TOS**                     | Guide for connecting to Volcengine's object storage.          | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/tos)              |

### On-Premises Storage

| Storage System                            | Description                                                                             | Guide                                                                            |
| ----------------------------------------- | --------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------- |
| **S3-Compatible**                         | For connecting to object stores that use the S3 API, such as MinIO or Ceph.             | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/s3-compatible) |
| **Hadoop Distributed File System (HDFS)** | The standard guide for connecting to an HDFS cluster.                                   | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/hdfs)          |
| **Network Attached Storage (NAS)**        | For connecting to any POSIX-compliant file system mounted on your cluster, such as NFS. | [View Guide](https://documentation.alluxio.io/ee-ai-en/ai-3.7/ufs/nas)           |