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One of the most common question I’m asked by users and customer about configuring a Linux-based s...
One of the most common question I’m asked by users and customer about configuring a Linux-based system for PostgreSQL is "What file fystem should I use to get the best performance?" Sadly, most of the recommendations is based on obsolete "common knowledge" passed from generation to generation. But in recent years the file systems improved a lot - we’ve seen both evolution of established file systems (EXT family, XFS, ...) and revolution in the form of BTRFS, ZFS or F2FS. And of course new kinds of hardware (SSDs) which certainly impacts the design of a file system.