RFC: Project geom-events

[Garrett Cooper]

On Oct 4, 2011, at 11:12 AM, Freddie Cash wrote:

> 2011/10/4 Lev Serebryakov <lev at freebsd.org>
> 
>> One thing is missed from software RAIDs is spare drives and state
>> monitoring (yes, I know, that geom_raid supports spare drivers for
>> metadata formats which supports them, but it not universal solution).
>> 
> 
> Sounds impressive!  Will be very useful for those using GEOM-based RAID
> (gmirror, gstripe, graid3, graid5, etc).
> 
> Just curious:  would the geom-events framework, and in particular the
> geom-events script, be useful for ZFS setups, for initiating replacements
> and providing "hot-spare" support?

	Work in the zfsd project branch already seems to do this properly. Please note that some HBAs (like mps) don't play well with hotswap on some branches, whereas others (mfi) might, depending on how things are coded up and chipset support.
Thanks,
-Garrett