Date: Tue, 04 Oct 2011 21:29:22 +0300 From: Alexander Motin <mav@FreeBSD.org> To: Freddie Cash <fjwcash@gmail.com> Cc: lev@freebsd.org, current@freebsd.org, freebsd-geom@freebsd.org Subject: Re: RFC: Project geom-events Message-ID: <4E8B5082.2080005@FreeBSD.org> In-Reply-To: <CAOjFWZ4WHPD6EwZ_6mqYuz5d0Bi8DFN=GDUga8phNm%2BsEfRvhw@mail.gmail.com> References: <1927112464.20111004220507@serebryakov.spb.ru> <CAOjFWZ4WHPD6EwZ_6mqYuz5d0Bi8DFN=GDUga8phNm%2BsEfRvhw@mail.gmail.com>
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On 04.10.2011 21:12, Freddie Cash wrote: > 2011/10/4 Lev Serebryakov <lev@freebsd.org <mailto:lev@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? Now there is projects/zfsd branch that is doing alike things (disk auto-insertion and hot spares) specifically for the case of ZFS. It also uses devctl interface to receive events, but user-level part (zfsd itself) is tightly hardcoded to talk to ZFS, fetching statuses and making control actions. Not sure whether this functionality could be scripted within geom-events, but having single mechanism indeed would be nice. -- Alexander Motin
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