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What file systems are you using on your devices and why?
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this post was submitted on 08 Aug 2024
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ext4 because I value my data and don't want to lose it. I used to mess about with ZFS for mass storage but it's a university course to learn how to use and have decent performance.
I used to use XFS, but ext4 caught up.
And I used to use XFS... on something other than Linux.
xfs has reflinks. That means you can copy huge wodges of data nearly for free on one filesystem. For backup systems this is a killer feature. Veeam rolling up incremental backups into the last full happens in seconds because pointers to blocks are juggled around rather than the data blocks themselves.
xfs has been around for a very, very long time. I use it for larger filesystems eg Nextcloud, Zoneminder and the like (and Veeam backup repos that are not object storage). I use ext4 by default.
pfSense boxes - zfs because the alternative is ufs.
RPi - OverlayFS (with ext4 and tmpfs) gets you a generally read only filesystem with changes held in RAM. Ideal for kiosks, appliances and keeping memory sticks alive.
Windows - NTFS, it works well and has streams and there aren't many other options (ReFS is a bit new but it does have reflinks)