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On Mar 4, 2012 11:17 PM, "Tanstaafl" <tanstaafl@×××××××××××.org> wrote: |
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> |
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> What are peoples opinions of ESXi? The guys I'm considering using are |
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perfect for everything else, but they only have experience with Microsoft |
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Hyper-V and ESXi. I don't think they have *any* experience with Xen on |
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Linux, but I dunno about XenServer (I'll find out)... |
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> |
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ESXi is good enough. It's a 'jack of all trades', runs everything Good |
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Enough™, but gets expensive in the long run. Plus, its hypervisor is |
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heavier than Hyper-V and Xen/XenServer, although not by much. |
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XenServer runs Linux guests extremely well; ever since 2.6.38 IIRC, all |
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paravirtual knobs are part of the kernel. This enables the highest |
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performance possible for a guest Linux VM. Windows performance is |
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acceptable; the PV drivers help a lot. It's not perfect, but still |
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acceptable by all measurements. |
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Hyper-V is still struggling to make Linux VMs run well; requisite drivers |
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for running Linux in paravirtual mode just recently got pulled into Linus's |
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tree. IMO, it won't be ready for production Linux VMs until 2013, or late |
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2012 at the earliest. |
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|
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One 'trick' when making VMs under VMware: the VMXnet subsystem, although at |
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first sounds like it will be a boost to performance (paravirtual device), |
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is not really stable; I've heard lots of grief. Just provide a bog-standard |
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emulated e1000 for the guest VMs. |
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> |
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> On 2012-03-03 10:55 PM, Pandu Poluan <pandu@××××××.info> wrote: |
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> > On Mar 4, 2012 8:13 AM, "Francisco Blas Izquierdo Riera (klondike)" |
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> > <klondike@g.o <mailto:klondike@g.o>> wrote: |
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> >> El 04/03/12 01:26, Michael Orlitzky escribió: |
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> >> Or maybe he should just ask on gentoo-hardened where many other users |
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> >> including paid ones roam. |
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> |
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> > Or gentoo-server. After all, Hyper-V is currently aimed for server |
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> > environs, so the server guys should have better ideas. |
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> > |
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> > (disclosure: I'm a server guy, but unfortunately have no experience |
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> > at all with Hyper-V; my infrastructure runs exclusively on Xen) |
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> |
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> Hi Pandu, |
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> |
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> At first I thought you meant Xen proper, but as I was googling about |
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Xen/XenServer+Gentoo I stumbled on this blog post of yours from about 7 |
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months ago: |
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> |
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> |
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http://pepoluan.posterous.com/finally-gentoo-pv-on-xenserver-without-initrd |
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> |
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> So - are you using Xen? Or Citrix's XenServer? |
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> |
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Well, both *are* based on the exact same Xen hypervisor. The differences |
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between pure Xen and XenServer: Citrix provided a CentOS-based dom0 that's |
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guaranteed to Just Works™, and Citrix also provides mature management tools |
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(Windows-based) that will greatly ease the management of your VMs and |
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pools. Plus, one gets "premium-level" support from Citrix. |
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That last bit of difference was the key deciding factor of my BoD. |
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FYI, Citrix XenServer Standard Edition is 100% gratis, so you can "take it |
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out for a spin" first. Upgrading from the Standard Edition to the |
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non-gratis Enterprise Edition or Platinum Edition is a simple matter of |
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importing a "License Server VM" (image freely downloadable from Citrix) and |
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putting the license file in that License Server. |
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> Do you have any experience running virtualized Microsoft Servers on Xen |
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(or XenServer)? |
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> |
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I've successfully deployed the following OSes on XenServer for production: |
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Windows 2003, Windows 2008, Gentoo Linux Hardened, Ubuntu Server, and |
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Debian stable |
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The dev boxen also ran rPath Linux (part of OpenFiler), Windows XP SP3, |
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Windows 7, and FreeBSD. |
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> If so, would you be interested in some contract work (if so, please |
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contact me directly)... |
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> |
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Well, I'd like to help, but currently I'm transitioning to a new employer, |
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and there's a fuckload of things and know-hows that I have to 'transfer' to |
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my successors in the next two weeks :-\ |
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Rgds, |