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

[Kirk Strauser]

On May 29, 2010, at 6:45 PM, Denny Lin wrote:

> How about writing a shell script with this functionality? Get the
> available disk space using:
> $ zfs list -H -o avail tank
>
> And then compare the figures against a limit. Then delete the oldest
> snapshots when the limit is exceeded.


That's certainly an option, and easy to implement in a shell script.  
It just wouldn't work in the case where a bunch of data comes in  
between runs of that script, and that's why I wanted something lower- 
level.
-- 
Kirk Strauser