Date: Mon, 10 Nov 2003 10:52:39 +0100 (CET) From: Lukas Ertl <l.ertl@univie.ac.at> To: Pawel Jakub Dawidek <nick@garage.freebsd.pl> Cc: phk@FreeBSD.ORG Subject: Re: geom_mirror implementation Message-ID: <20031110104725.S22613@pcle2.cc.univie.ac.at> In-Reply-To: <20031110085115.GE84474@garage.freebsd.pl> References: <20031109003617.K626@korben.in.tern> <20031109023041.GA9171@VARK.homeunix.com> <20031109213450.GB13982@VARK.homeunix.com> <20031110085115.GE84474@garage.freebsd.pl>
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On Mon, 10 Nov 2003, Pawel Jakub Dawidek wrote: > I've start some work on more advance RAID implementation wich should > fit to GEOM just fine. Every RAID level will be a different GEOM class, > but with one configuration utility. All classes will share as many code as > possible to be flexible in adding new RAID levels in futher. Strategy > of choosing disks, failures handle, etc. should be also general. I want to > provide support for many on-disk metadata formats if it will be possible. Having a 'generic' RAID GEOM with individual RAID levels in subclasses sounds like a very good idea. The basic difference would be the routine that splits up IO requests according to the RAID level. regards, le -- Lukas Ertl eMail: l.ertl@univie.ac.at UNIX Systemadministrator Tel.: (+43 1) 4277-14073 Vienna University Computer Center Fax.: (+43 1) 4277-9140 University of Vienna http://mailbox.univie.ac.at/~le/
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