Disk usage calculators for btrfs RAID
April 27th 2026 (week 18 of 2026)So you want to create or expand your btrfs RAID filesystem, but have no idea how much space you will have (or want to check your math)? Here's a couple of links to help you.
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So you want to create or expand your btrfs RAID filesystem, but have no idea how much space you will have (or want to check your math)? Here's a couple of links to help you.
Adding a new device to a expand space on nearly-full btrfs filesystem in RAID1 configuration is easy. Rebalancing the filesystem to make use of the extra space is less so.
Not all file names that can be used on Linux can be used on Android. Beware the : and the ..
I recently changed the way I use my disks, and this involved doing things with btrfs.