Re: Most simple filesystem with content checksums?

[Ellie <el%horse64.org@localhost>]

On 11/3/26 19:25, Greg A. Woods wrote:
> Using LVM and the device mapper to implement something equivalent to the
> linux "dm-integrity" feature would be a great idea!  It would be far
> more flexible than just using RAIDframe.
I think doing integrity checks at the block level has the problem that 
it can become far less actionable:

If BTRFS or ZFS complain that a file is broken, via an IO error trying 
to read from it, I can just delete the file and copy it from a backup.

If a block layer complains a block is broken, I do... what? Toss the 
entire install?

(I understand in the long term even a single bit flip is a strong 
indicator for replacing the entire disk. But I prefer having both some 
time and some room for nuanced and well-thought-out decisions when a 
problem like this occurs, rather than having my hand forced.)

Regards,

Ellie