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24.7 Production Series / Re: Disk read errors
« on: October 29, 2024, 12:29:45 pm »Ok, this could coincide with
community/23.7/23.7.12:o system: change ZFS transaction group defaults to avoid excessive disk wear
We did have to apply this change because ZFS was wearing out disks with its metadata writes too much even when absolutely no data was written in the sync interval. You could say that ZFS is an always-write file system. Because if you always write the actual data written will wear the drive, not the metadata itself.
In your case it has probably been wearing out the disk before this was put in place. That's at least 2 years worth of increased wear.
Cheers,
Franco
Franco, was this change applied to existing systems, not just new installations?
Because two months into my new disk, I already have 23 TB of writes ...