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Server virtualization
Hi folks,
Server virtualization. What will be the best planning, strategy, etc. on server virtualization? Google found me tons of article sufficient for me reading a month. Can any folk shed me some light on; - whether the host should not run any server or application on it except VMware/Xen/Virtualbox/qemn etc. there ? - if there is only one fixed IP/public IP can it satisfy all servers running on the virtural box? OR multiple fixed IP/public IP are needed? - Which servers can't be co-exist - Network arrangement. - Can I run Vyatta on the same box http://www.vyatta.com/ Pointer would be appreciated. TIA B.R. satimis |
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If you run Xen, you will not be able to run VirtualBox or VMware at the same time and vice versa, you must decide which virtualization sollution to choose, you may also go with KVM if you CPU supports Intel-VT or AMD-V.
You can of course run vyatta and many other OSes at the same time.
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religions, worst damnation of mankind "If 386BSD had been available when I started on Linux, Linux would probably never had happened." Linus Torvalds Linux is not UNIX! Face it! It is not an insult. It is fact: GNU is a recursive acronym for “GNU's Not UNIX”. vermaden's: links resources deviantart spreadbsd |
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Sorry for the confusion on my late posting. What I meant is running either Xen or VMware or VirturalBox etc. Most likely I'll test Xen. I have a box here running VMware. Any suggestion? Thanks Quote:
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What I'm concerned is following points; - Whether we should not run anything on the host other than VMware/Xen/VirturalBox, etc. - Can I run a workstation as host? Because I don't install X packages on server. I do headless installation. If YES I can configure/install the servers on the workstation. B.R. satimis |
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You may do some "startup" administration at the box in x11 and then after all Xen/xVM setup is done disable X11.
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religions, worst damnation of mankind "If 386BSD had been available when I started on Linux, Linux would probably never had happened." Linus Torvalds Linux is not UNIX! Face it! It is not an insult. It is fact: GNU is a recursive acronym for “GNU's Not UNIX”. vermaden's: links resources deviantart spreadbsd |
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Hi vermaden,
Good suggestion. Never run Solaris before. In the past for Unix I selected either OpenBSD or FreeBSD. A side question what will be the difference btw Solaris and Open Solaris? Quote:
Others noted with thanks B.R. satimis |
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Solaris is based on OpenSolaris + some binary addons that are not avialable in source. Solaris is avialable only in binary form while OpenSolaris comes with full sources. Every two weeks there is new build (annunced on opensolaris.org/os JIVE forums) of OpenSolaris SXCE (Solaris Express Community Edition), currently build 90, about every quater Sun creates SXDE (Solaris Express Developer Edition) which is then tweaked/fixed to be a Solaris 10 $MONTH / $YEAR update. For Solaris resources check docs.sun.com lots of good docs there, especially for virtualization, a near 40 chapter book about virtualization for example
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religions, worst damnation of mankind "If 386BSD had been available when I started on Linux, Linux would probably never had happened." Linus Torvalds Linux is not UNIX! Face it! It is not an insult. It is fact: GNU is a recursive acronym for “GNU's Not UNIX”. vermaden's: links resources deviantart spreadbsd |
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Slack is 32 bit. There's a few 64 bit versions, I think one is considered the quasi-official one but I don't remember which.
As for which virtualization, on Linux, I have a page with my VERY subjective opinion.... http://home.nyc.rr.com/computertaijutsu/vmcomp.html |
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If all your hardware is supported by Linux kernel 2.6.18, and your CPU doesn't support hardware virtualisation, and you will only be running NetBSD or Linux in your virtual machines, then Xen 3.0 (not 3.1 or 3.2) is very nice. Fairly easy to use, very fast, very lightweight.
However, if your CPU support hardware virtualisation, then go with with a Linux distro that uses kernel 2.6.24, and use Kernel-based Virtual Machine (KVM). With that, you can create virtual machines you can run *any* 32-bit or 64-bit PC-based OS (any BSD, any Linux, any Windows, etc). KVM is very easy to use, is very lightweight, is very easy to understand, and performance is very close to native (around 80% in most benchmarks). There's also paravirtual disk and network drivers available for Linux and Windows which give native I/O performance. For more info, check http:///kvm.qumranet.com/kvmwiki/ and http://www.linux-kvm.com We're moving all our VM hosts to KVM. It's just better than Xen. |
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I have no hardware problem. I'll take your advice installing Zenwalk Linus as host and run KVM on it as virtual server. Thanks B.R. satimis |
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The really nice thing about KVM is that you don't have to learn a new way of networking. You use the tools in the host OS to configure the network. If you want eth0 to be your bridge, you can. If you want eth3 through eth6 to be separate bridges assigned to separate VMs, without IPs, with eth0 a management interface with an IP, you can. If you want to create a large bond0 using eth1 through eth6, and then use that for the bridge, you can. Anything you can do normally in Linux networking, you can configure for the networking for the VMs. Quote:
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