> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdc-10.2-data-optimizer/pdso-install-landing-page/pdso-requirements/pdso-data-source-connectivity.md).

# Data source connectivity

The following table contains the supported data sources and respective requirements to connect with Data Optimizer.

<table><thead><tr><th width="196">Data source</th><th>Requirements</th></tr></thead><tbody><tr><td>AWS S3</td><td><ul><li>AWS region where the S3 bucket was created</li><li>Access key and secret access key</li><li>Read-only permissions to the S3 bucket</li></ul></td></tr><tr><td>Azure Blob Storage</td><td><ul><li>Account Fully Qualified Domain Name (FQDN)</li><li>Client ID and client key</li><li>authTokenEndpoint</li></ul></td></tr><tr><td>HCP</td><td><ul><li>AWS region where the S3 bucket was created</li><li>Access key and secret access key</li><li>Read-only permissions to the S3 bucket</li></ul></td></tr><tr><td>HDFS</td><td><ul><li>Hadoop version 2.7.2 and later</li><li>URI should provide a hostname and share folder details</li><li>Path of the directory that needs to be scanned</li><li>Read-only access to the directory</li></ul></td></tr><tr><td>SharePoint and OneDrive</td><td><ul><li>Application (client) ID, Directory (tenant ID), and clientSecret from a registered app on the Azure portal</li><li>Delegated permissions and Application permissions in the registered app</li><li>Read-only permissions to the SharePoint and OneDrive sites</li></ul></td></tr><tr><td>SMB/CIFS</td><td><ul><li>URI should provide host name and share folder details</li><li>Username and password to access the SMB/CIFS share directory</li><li>Path of directory that needs to be scanned</li><li>Read-only access is required</li></ul></td></tr></tbody></table>


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