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The more important reason is to back up your Plex server. Such an instance can happen if the Plex cache folder accumulates a lot of files.
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There are instances where the number of files in that folder can take up a lot of space. The first is to ensure it doesn't get too large. There are several reasons you may want to know the location of the Plex Media Server's data directory. Media files should be placed in a separate location to keep the data directory as clean as possible. It is important to note that your media files are not placed in the Plex data directory. The files stored in this directory are used to run and manage your Plex server. The Plex data directory location is used to store files that are used by the Plex Media Server.
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