"Red Hat is a completely different company than it was five years ago," insisted Brian Stevens, the company's new chief technology officer. Stevens himself is a 14-year DEC veteran who lives in the Boston area. He's been charged with shepherding open-source technologies (not just Linux) toward mission-critical readiness. At DEC, he was an architect for the company's Tru64 Operating System. He also helped develop the X Window System, widely used as the graphical interface for Unix. Stevens stopped by the GCN offices and spoke with associate writer Joab Jackson.
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Member since:FreeBSD 4.0 from March, 2000 came with jail. Solaris 10 came this year with their version of jail (zones).
I do not know any enteprise linux distributions with anything like this.
Neither solaris nor freebsd has anything like xen. Jail is not the same, but it can often be used for some of the same tasks.
IBM S/360 mainframes came with the same kind of technology as Xen in the 1960s.
http://en.wikipedia.org/wiki/System_360
http://en.wikipedia.org/wiki/VM/CMS
You are right. RedHat is about 39 years after IBM. But mostly at the same level as the other Linux distributions, Solaris, Windows and others.
Member since:2005-07-06
Neither solaris nor freebsd has anything like xen. Jail is not the same, but it can often be used for some of the same tasks.
Solaris will have Xen as well, see:
http://blogs.sun.com/roller/page/tpm?entry=hello_world_from_solaris...
Sun, IBM and even HP unix systems all support virtualization
in hardware. Xen is only really needed on X86 systems
, which currently don't have much support for hardware virtualization, as an alternative to the proprietary and expensive vmware.
To my mind, the problem of utilization is much better
addressed by application containers (i.e. jails, zones)
than it is by hardware virtualization.
Member since:
2005-07-06
Remember this one word Xen
Well, to be fair, RHEL actually needs this to be on par
with the operating systems and environments it is
competing with. RHEL is not at an advantage, it is
catching up.