Date: Wed, 13 Aug 2008 18:57:13 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-questions@FreeBSD.ORG, freebsd@meijome.net Subject: Re: Cluster Filesystem Message-ID: <200808131657.m7DGvDKI077121@lurza.secnetix.de> In-Reply-To: <x89710x1218157444x@lurza.secnetix.de>
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Norberto Meijome wrote: > "Rudi Kramer - MWEB" wrote: > > Don't forget about the HAMMER file system which Matthew Dillon over at > > DragonFly BSD is busy working on. It's not 100% finished but hopefully > > soon and it should be ported to FreeBSD. It looks to be pretty good > > (Exabytes of space?!!!?) > > > > More info: > > > > Interview with Matthew: > > http://cisx1.uma.maine.edu/~wbackman/bsdtalk/bsdtalk154.mp3 > > Website: http://www.dragonflybsd.org/hammer/ > > Wiki: http://en.wikipedia.org/wiki/HAMMER > > interesting. it mentions mirroring...but clustering? as in, > having a unique ( or several) namespaces that, when addressed, > allow you to access any of the nodes that provide storage? Note that Matt's terminology is a little bit confusing. What he calls "mirroring" in HAMMER has nothing to do with RAID-1 (like gmirror), but it is rather a kind of replication. The "mirroring" feature allows replication between local and/or remote file systems. So, yes, it is intended to support clustering. Clustering and SSI is the main goal of DragonFly BSD, after all. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd In my experience the term "transparent proxy" is an oxymoron (like jumbo shrimp). "Transparent" proxies seem to vary from the distortions of a funhouse mirror to barely translucent. I really, really dislike them when trying to figure out the corrective lenses needed with each of them. -- R. Kevin Oberman, Network Engineer
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