How to deploy big objects in Salesforce?

Define a custom big object through the Metadata API by creating XML files that contain its definition, fields, and index.

• <samp>object</samp> files—Create a file for each object to define the custom big object, its fields, and its index.
• <samp>permissionset</samp>/<samp>profile</samp> files—Create a permissionSet or profile file to specify permissions for each field. These files are not required, but is required to grant access to users. By default, access to a custom big object is restricted.
• <samp>package</samp> file—Create a file for the metadata package to specify the contents.