I use BTRFS on several devices for years. The tooling is a bit rough, but no major problems. Just recently data checksumming saved me: In December I replace an

I use BTRFS on several devices for years. The tooling is a bit rough, but no major problems. Just recently data checksumming saved me: In December I replace an old 2TB drive in my RAID1 (2+4+4+4) with an 8TB drive. The new drive had checksum errors after a few weeks which BTRFS handled gracefully. With "classical" RAID i might only have noticed when it's to late. (I RMAed the bad drive) [/dev/mapper/h4_crypt].write_io_errs 0 [/dev/mapper/h4_crypt].read_io_errs 0 [/dev/mapper/h4_crypt].flush_io_errs 0 [/dev/mapper/h4_crypt].corruption_errs 0 [/dev/mapper/h4_crypt].generation_errs 0 [/dev/mapper/h2_crypt].write_io_errs 0 [/dev/mapper/h2_crypt].read_io_errs 30 [/dev/mapper/h2_crypt].flush_io_errs 0 [/dev/mapper/h2_crypt].corruption_errs 0 [/dev/mapper/h2_crypt].generation_errs 0 [/dev/mapper/h1_crypt].write_io_errs 0 [/dev/mapper/h1_crypt].read_io_errs 0 [/dev/mapper/h1_crypt].flush_io_errs 0 [/dev/mapper/h1_crypt].corruption_errs 0 [/dev/mapper/h1_crypt].generation_errs 0 [/dev/mapper/h3_crypt].write_io_errs 0 [/dev/mapper/h3_crypt].read_io_errs 0 [/dev/mapper/h3_crypt].flush_io_errs 0 [/dev/mapper/h3_crypt].corruption_errs 0 [/dev/mapper/h3_crypt].generation_errs 0 [/dev/mapper/luks-e120f41e-9c8a-4808-876f-fa6665ee8bb8].write_io_errs 0 [/dev/mapper/luks-e120f41e-9c8a-4808-876f-fa6665ee8bb8].read_io_errs 16 [/dev/mapper/luks-e120f41e-9c8a-4808-876f-fa6665ee8bb8].flush_io_errs 0 [/dev/mapper/luks-e120f41e-9c8a-4808-876f-fa6665ee8bb8].corruption_errs 20619 [/dev/mapper/luks-e120f41e-9c8a-4808-876f-fa6665ee8bb8].generation_errs 0 edit: formatting