Date: Mon, 21 May 2012 09:38:25 -0700 From: Oleg Moskalenko <oleg.moskalenko@citrix.com> To: =?utf-8?B?J0RhZy1FcmxpbmcgU23DuHJncmF2Jw==?= <des@des.no>, Jamie <jamie@geniegate.com> Cc: "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>, Vance Siemens <vance.siemens@gmail.com>, "freebsd-chat@freebsd.org" <freebsd-chat@freebsd.org>, Rick Macklem <rmacklem@uoguelph.ca>, Vincent Hoffman <vince@unsane.co.uk> Subject: RE: FreeBSD 10 prognostication... Message-ID: <031222CBCF33214AB2EB4ABA279428A3011A2D017097@SJCPMAILBOX01.citrite.net> In-Reply-To: <868vglud1e.fsf@ds4.des.no> References: <20120520170702.GY22790@mule.podro.com> <1120936952.633013.1337546532026.JavaMail.root@erie.cs.uoguelph.ca> <20120521035323.GZ22790@mule.podro.com> <868vglud1e.fsf@ds4.des.no>
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Modern large-scale virtualization technologies are based upon bare-metal versions of VMWare and XenServer. They are not Linux and they are not FreeBSD - the Hypervisors are a specialized breed of OSes (albeit, the hypervisor manager is usually a UNIX-like OS). Any conventional OS (Linux, FreeBSD) can only do their best to be a "civilized" guest OS. Linux or FreeBSD cannot be a server platform for real enterprise virtualization - the hypervisors have won that place. This is not a contest point between Linux and FreeBSD. The jail system is not helpful for enterprise virtualization, either. Oleg > -----Original Message----- > From: owner-freebsd-current@freebsd.org [mailto:owner-freebsd- > current@freebsd.org] On Behalf Of Dag-Erling Smørgrav > Sent: Monday, May 21, 2012 1:58 AM > To: Jamie > Cc: Vincent Hoffman; Vance Siemens; Rick Macklem; freebsd- > chat@freebsd.org; freebsd-current@freebsd.org > Subject: Re: FreeBSD 10 prognostication... > > Jamie <jamie@geniegate.com> writes: > > Jails are usually more suited to "cloud work" than KVM or the latest > > OpenVZ/Containers/??? of the linux world ever will be... > > No, they're not. VMWare, RHEV (KVM-based) etc. provide features such > as > seamless migration of virtual machines from one physical machine to > another, automatic restart on a different physical server if one fails > etc. that simply aren't possible with jails; and there are certain > things you still can't run reliably / safely in jails - anything that > relies on SysV IPC, for instance, such as PostgreSQL. > > DES > -- > Dag-Erling Smørgrav - des@des.no > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current- > unsubscribe@freebsd.org"
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