# Use Multiple Media Servers

It is possible to configure multiple Media Servers to use the same rolling buffer configuration file. You can have a maximum of one Media Server writing video into a rolling buffer, but other Media Servers can read content from the rolling buffer.

If you configure multiple Media Servers to use the same rolling buffer configuration file, you must:

- grant read access to the rolling buffer configuration file to all of the Media Servers.
- grant write access to the rolling buffer configuration file to only one Media Server. If you need to change the settings for your rolling buffers, you must send actions to this Media Server.
- allow only one Media Server to write video into each rolling buffer. The `Stream` parameter in a rolling buffer encoding task specifies which rolling buffer to write video to.

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