On 2024-02-15 at 07:14, debian-u...@howorth.org.uk wrote: > The Wanderer <wande...@fastmail.fm> wrote: > >> It turns out that there is a hard limit of 65000 hardlinks per >> on-disk file; > > That's a filesystem dependent value. That's the value for ext4.
I think I recall reading that while I was flailing over this, yes. ext4 is what I use for daily-driver purposes these days; from the little I've looked into the matter, everything else seems to be either too complicated, or too non-robust, to be worth risking my live data on. > XFS has a much larger limit I believe. As well as some other helpful > properties for large filesystems. > > btrfs has different limits, depending on where the hardlinks are, > apparently. Some larger, some ridiculously smaller. So it might make sense to use one of those as the underpinning for whatever external system I wind up setting up for tiered backup, then. Though experimentation to determine the limits would be warranted. That's not immediately actionable, but it's good to have in the background as planning etc. takes place. -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
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