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-curr...@freebsd.org [mailto:owner-freebsd- > curr...@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- > c...@freebsd.org; freebsd-curr...@freebsd.org > Subject: Re: FreeBSD 10 prognostication... > > Jamie <ja...@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 - d...@des.no > _______________________________________________ > freebsd-curr...@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current- > unsubscr...@freebsd.org"
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