Make ZFS auto-destroy snapshots when the out of space?

[Kirk Strauser]

On 05/31/10 08:48, Paul Mather wrote:
> Devd already receives several ZFS-based events (failed vdev, I/O 
> error, checksum mismatch, etc.), so perhaps it would be useful to add 
> another, e.g., "space" which is set to be triggered when a pool 
> attains a certain percentage full. This could default to 100%, but be 
> capable of being set lower by an associated kernel sysctl. You could 
> then have any auto-pruning/snapshot management script triggered from 
> devd. (You'd probably also have to figure out some kind of throttling 
> mechanism for this devd event, too.)

I think that's probably the best alternative. Again, I could see that 
being used for a lot of things. It would be a nice general solution that 
wouldn't touch any (or very little) non-FreeBSD code.

-- 
Kirk Strauser