Date: Tue, 7 Mar 2006 14:43:40 +0100 From: Bernd Walter <ticso@cicely12.cicely.de> To: babkin@users.sourceforge.net Cc: freebsd-hackers@freebsd.org, Ashley Moran <work@ashleymoran.me.uk> Subject: Re: NetBSD disk backup over network Message-ID: <20060307134339.GE676@cicely12.cicely.de> In-Reply-To: <2833016.1141737440654.JavaMail.root@vms070.mailsrvcs.net> References: <2833016.1141737440654.JavaMail.root@vms070.mailsrvcs.net>
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On Tue, Mar 07, 2006 at 07:17:20AM -0600, Sergey Babkin wrote: > >From: Ashley Moran <work@ashleymoran.me.uk> > > >I just saw this slashdotted article: > >http://ezine.daemonnews.org/200603/dermouse.html > > > >Just to satisfy my curiosity, is it the sort of thing that can be implemented > >as a GEOM layer? The idea is bloody clever but sounds like a bit of a hack > >right now. > > Well, I've been running around with this kind of idea for > around 10 years now. Never actually implemented it though. > I can't quite believe that encryption at full disk speeds > makes no noticeable CPU overhead. This sounds as nothing more than a mirror with one disk beeing a remote file. And this is not really a new idea - remote mirror has a long standing tradition. You can already configure these things with GEOM right now. But this is in no way a backup, this just saves you from disk failures which is the purpose of a mirror. What is missing is history in the remote image so that one can access older contents. -- B.Walter http://www.bwct.de http://www.fizon.de bernd@bwct.de info@bwct.de support@fizon.de
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