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From: Garrett Cooper <yanegomi@gmail.com>
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Date: Tue, 4 Oct 2011 12:15:13 -0700
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References: <1927112464.20111004220507@serebryakov.spb.ru>
	<CAOjFWZ4WHPD6EwZ_6mqYuz5d0Bi8DFN=GDUga8phNm+sEfRvhw@mail.gmail.com>
To: Freddie Cash <fjwcash@gmail.com>
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Cc: Alexander Motin <mav@freebsd.org>, lev@freebsd.org, current@freebsd.org,
	freebsd-geom@freebsd.org
Subject: Re: RFC: Project geom-events
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On Oct 4, 2011, at 11:12 AM, Freddie Cash wrote:

> 2011/10/4 Lev Serebryakov <lev@freebsd.org>
>=20
>> 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).
>>=20
>=20
> Sounds impressive!  Will be very useful for those using GEOM-based =
RAID
> (gmirror, gstripe, graid3, graid5, etc).
>=20
> 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=