The document provides an overview of different file systems for PostgreSQL including EXT3/4, XFS, BTRFS and ZFS. It discusses the evolution and improvements made to EXT3/4 and XFS over time to address scalability, bugs and new storage technologies like SSDs. BTRFS and ZFS are described as designed for large data volumes and built-in features like snapshots and checksums but BTRFS is still consider
![PostgreSQL na EXT4, XFS, BTRFS a ZFS / FOSDEM PgDay 2016](https://cdn-ak-scissors.b.st-hatena.com/image/square/afcc4c43faa8d227f496e7a94b47988e871bd8de/height=288;version=1;width=512/https%3A%2F%2Fcdn.slidesharecdn.com%2Fss_thumbnails%2Ffilesystem-benchmark-cs-160208184624-thumbnail.jpg%3Fwidth%3D640%26height%3D640%26fit%3Dbounds)