[Pkg-samba-maint] Bug#911118: mhddfs hangs for a while on writing

[Michael Tokarev]

16.11.2024 18:11, наб wrote:
> On Sat, Nov 16, 2024 at 10:01:54AM +0300, Michael Tokarev wrote:
>> Speaking of mhddfs itself, isn't it kinda useless today,
>> when we had unionfs, aufs, and now have in-kernel overlayfs?
> Thought so too, but I'm yet to find something that implements something
> equivalent to mhddfs (over filesystems; over disks is solved).
> All the overlay filesystems are overlays, not stripes, AFAICT.

Hm. Interesting.  Yes, for writes, all other filesystems use
just the top layer, and copy a file from a deeper layer when
it is about to be changed.

I guess overlayfs needs a simple option to turn it into a
stripe-like union where writes goes to the same layer where
the file resides, without the copy-on-write logic.

But apparently this hasn't been done.

Thanks,

/mjt