Poll: What virtualisation platform are you using?

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Thin Client and Virtual Machines Thread, VMware, Xen, Hyper-V - Your Experiences? in Technical; Waiting for servers and SAN to arrive to do some performance testing. At the moment though am looking more towards ...
  1. #16
    Butuz's Avatar
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    Waiting for servers and SAN to arrive to do some performance testing.

    At the moment though am looking more towards Xen as the free version is easy to use and easy to manage multiple hosts (looking top use 2 hosts to start off with and then move to 4), unfortunatly we can not afford the HA and motion features.

    ESXi you can only manage one host at a time for free, which is not useful.

    Hyper V I have not really looked at to be honest.

    Butuz

  2. #17

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    Quote Originally Posted by binky View Post
    how do you efficiently backup your machines?
    We run Xen on top of Linux LVM, so we can take a snapshot of a running filesystem at any time. Most VMs are split into OS and data drives so we can take an image of an OS drive any time we make a configuration change and data is backed up in the normal way (in our case, a script that runs on each server and copies files over to a central file server every night). I'm sure you could also figure out something involving a binary diff between DD images of VM drive volumes, though.

    --
    David Hicks

  3. #18

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    With Xen-server free you get the xenmotion free (works only with shared storage) but not the HA. The latter is part of the essentials pack.

    I'm dying to tryout xen-server properly with a view of replacing our linux host/ VMware server 1.0 setup I built last year but I have hit a significant snag in a lack of VT extension enabled core2 duos for testing!

    Until I can get something that will run windows guests it's prevented me from seriously looking at xen.

  4. #19

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    Quote Originally Posted by Duke View Post
    VMware ESX it requires a dedicated VCenter Server that needs an SQL database (you can't really virtualise this box so does it not become a single point of failure?), and seems far more awkward to set up than Xen.
    You can VM the vCenter (and SQL) box no problems. Have a search in my 'VMware vSphere' post for an explanation as to why its not a problem or why a single VM doesn't have to be a single point of failure.

    If you have HCL hardware, its not a problem to setup at all, but I cant compare it to Xen.
    Last edited by Theblacksheep; 1st June 2009 at 04:25 PM.

  5. #20
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    Quote Originally Posted by ranj View Post
    I managed to find this comparison of ESXi and Hyper V, It is a ball of laughs, its done by someone at Vmware but its so funny when he talks about the amount of times you have to restart a server with hyper-V compared to ESXi.
    Obviously this is a hugely biased video, but it does make some good points. Hyper-V seems (to me) a huge pain to install. The Hypervisor install should be quick and simple as it's only a virtualisation layer for the hardware. ESX and Xen show this perfectly as they can be set up in under ten minutes easily, Hyper-V is... frustrating. I'd like to say the video exaggerates the steps required, but it's actually pretty similar to my own experiences.

    Theblacksheep - I think I'm finally starting to get my head around VMware. What seemed like an overly complicated feature set now makes a lot more sense. If you're used to playing with Xen, you just accept that your single physical NIC will happily do everything and there's no real configuration of your hosts needed. Once you figure out all the settings in ESX then you start to appreciate all the enterprise-level features of having dedicated, redundant paths for all your connections on separate physical and virtual networks to keep your traffic flowing properly.

    Cheers,
    Chris

  6. #21

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    Bungay High School are having an open day for IT Managers/techs to come along and look at Xendesktop/server in action etc.....

    Citrix will be there as will Getech (a company in Ipswich that specialise in Virtualisation)

    If your in the Norfolk/Suffolk area you are more than welcome to come and have a look/play

    Its on the Wednesday 17th June

    Please email itservices@bungayhigh.co.uk for more details

  7. #22
    Duke's Avatar
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    Quote Originally Posted by artfulmatt View Post
    Bungay High School are having an open day for IT Managers/techs to come along and look at Xendesktop/server in action etc.....
    I won't be able to make this but it's a really kind offer and I hope someone who can attend is able to post their impressions of what sounds like a fairly large Xen install. I've just got my vSphere trial running properly so it's interesting to see how the two compare.

    Cheers,
    Chris

  8. #23

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    Quote Originally Posted by Duke View Post
    I won't be able to make this but it's a really kind offer and I hope someone who can attend is able to post their impressions of what sounds like a fairly large Xen install. I've just got my vSphere trial running properly so it's interesting to see how the two compare.

    Cheers,
    Chris
    Well its not "large" Xen install - only 20 machines at the moment, but we have capacity for the moving the whole school across in the future (we have a cycle to follow of replacements)

    The day has been changed to the 24th JUNE
    Last edited by artfulmatt; 3rd June 2009 at 11:22 AM. Reason: forgot something

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