# Options

![SSTable Output](https://3411831820-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAYwCj9fPr1B2pjC11IOQ%2Fuploads%2Fgit-blob-3837a4e1f24b2d8bd8033499bc14d9755913d8ca%2FPDITransStep_SSTableOutput_Options.png?alt=media)

The following options are available for the SSTable Output transformation step.

| Option                                | Description                                                                                                                                                                        |
| ------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Step name**                         | Specify the unique name of the SSTable Output step on the canvas. You can customize the name or leave it as the default.                                                           |
| **Cassandra yaml file**               | Specify the location of YAML file. A`cassandra.yaml` file is the main configuration file for Cassandra. It defines node and cluster configuration details.                         |
| **Directory**                         | Specify where to write the output. This directory points to the target table to load to and must match the **Keyspace** and **Table** fields.                                      |
| **Keyspace**                          | Specify the keyspace (database) name of the target table to load. The name specified must match the **Directory** field.                                                           |
| **Table**                             | Specifies the table (column family) to upload. It assumes the metadata for this table was previously defined in Cassandra. The table specified must match the **Directory** field. |
| **Incoming fields to use as the key** | Specify which incoming row to use as the key. You can use **Set Fields** to specify the key from the names of incoming PDI transformation fields.                                  |
| **Set Fields**                        | Select from a list of incoming PDI transformation fields to specify as the **Incoming fields to use as the key**.                                                                  |
| **Buffer (MB)**                       | Specify buffer size to use. A new table file is written every time the buffer is full.                                                                                             |