this post was submitted on 21 Apr 2025
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Does anyone know what the underlying filesystem is on DSM? The ability to easily replace disks with a degree of redundancy across the 4 bays is the biggest plus point for Synology although I have no doubt all the bits underneath are the Linux storage stack.
Filesystem is either EXT4 or BTRFS, but the partitioning and redundancy from their SHR system is a combination of RAID1/5 and LVM.
mine is btrfs, ds1618+
that probably does not have redundancy
I can lose 2 drives.
Why?