Quoting "Petros Listig" <petros@fdrive.com.au>:
Erm, mdadm emails me when a RAID array fails. I didn't have to write my own script, because that's something everybody running an array should want (more or less). If I had migrated from md to zfs, I'd have been bitten by that. A mismatch of expectations, I guess.
I never use scripts or whatever that have to be configured per host. It is just tiresome. There is a icinga/nagios plugin for ZFS health. Icinga is the only "spam robot" in the network. To be honest, I don't look at syslog at all, as long as I am not debugging a problem, or install a new machine, or configure a service. FreeBSD machines send a daily status and security report, they include kernel messages though. My brain is still half asleep when I look at them, and it is more a "pattern matching" as reading, somehow visual memory tells me how these mails should look like, and I wake up if they do not match. It is just for finding Rumfeld's unknown unknowns, the rest is an Icinga/nagios job. The health of a ZFS system is one of the known unknowns and can be observed by the monitor system. I don't need anything else. Regards Peter