Discussion went on here: https://www.reddit.com/r/btrfs/comments/k93f16/using_btrfs_with_snapraid_and_snapper/grgvqt2/?utm_source=reddit&utm_medium=web2x&context=3 Please help think of a way to overcome the subvolume limitation.
Yes, I already formatted my parity disk now like this: sudo mkfs.ext4 -L parity1 -m 0 -i 67108864 -J size=4 /dev/sdX Following some of the recommendations here, recommending -i 67108864 over largefile4: https://sourceforge.net/p/snapraid/discussion/1677233/thread/ecef094f/
Thanks! I am intrigued and would like to test (because what could go wrong when disabling preallocation? Would it affect speed?), but I'm afraid I'm going down a rabbithole. That would be ok if I had enough time free to deal with whatever jumps on my path. Unfortunately I don't have that liberty anymore with a new job+study. I will play it safe: use ext4 for my parity disk just like it says in the documentation..
My data disks are mounted with the compression option zstd:5 and my parity disk, also btrfs, with zstd:8. I understand when Snapraid reads the data, it reads it uncompressed, but since my parity drive also uses compression, it shouldn't matter, because the parity file will be stored compressed. I use slightly higher compression (the difference between 5 and 8 is minimal) just because it means slightly less data has to be written to disk. Also it ensures my parity disk is large enough (all my drives...
@amadvance I am a big fan and promotor of Snapraid. In combination with the snapraid-btrfs wrapper I believe it is the best way to protect your disk pool against failures while also part of a backup strategy. I believe Snapraid is not an alternative to btrfs filesystem, it contributes to it since btrfs-raid1 doesn't make sense in many home and small business environments while separately formatted btrfs disks pooled with MergerFS and protected by Snapraid does: by creating a read-only snapshot of...
@amadvance I am a big fan and promotor of Snapraid. In combination with the snapraid-btrfs wrapper I believe it is the best way to protect your disk pool against failures while also part of a backup strategy. I believe Snapraid is not an alternative to btrfs filesystem, it contributes to it: by creating a read-only snapshot and syncing that snapshot, you can always restore via Snapraid even when the original data is modified between sync operations (the wrapper creates the ro snapshot before running...
Nobody? Why does this forum exist?
bump I could use some assistance, please.