# Agent-level filesystem

Files stored on disk on an [agent](../../data-connection/core-concepts/index.md#agents) can be synced into Foundry using the filesystem source type.

This source type can be used to sync data from a [Network File System ↗](https://en.wikipedia.org/wiki/Network_File_System) (NFS) or [Network-attached storage ↗](https://en.wikipedia.org/wiki/Network-attached_storage) (NAS) to Foundry, by mounting the NFS or NAS on the agent host and configuring the root directory appropriately.

## Supported capabilities

| Capability  | Status |
|--- |--- |
| Exploration | 🟢 Generally available |
| Bulk import | 🟢 Generally available |
| Incremental | 🟢 Generally available |
| [File exports](../../data-connection/export-overview/index.md#file-exports) | 🟢 Generally available |

## Configuration

| Parameter  | Required? | Default | Description |
|--- |--- |--- |--- |
| `rootDirectory` | Y | | Root directory containing data. |
| `fileMustNotChangeDuration` | N | `PT2.0S` | Amount of time (in [ISO-8601 ↗](https://docs.oracle.com/javase/8/docs/api/java/time/Duration.html#parse-java.lang.CharSequence)) a file must remain constant before being considered for upload. <br>Note: If possible, use the more efficient `lastModifiedBefore` processor. |

**Example:**

```yaml
myDirectorySource:
    type:           directory
    rootDirectory:  /foo/bar
```

:::callout{theme="warning"}
Data Connection excludes all symbolic links, regardless of whether the links are to files or to folders.
:::