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Linodes en Xen

C'est officiel - Xen est maintenant en ligne chez Linode. Le chemin a été long, presque quatre ans en fait, mais, avec l'aide de notre communauté, le dernier programme bêta a finalement prouvé que Xen était prêt à l'action.

Que signifie Xen pour vous ? Xen a moins de frais généraux que UML. Xen Les Linodes ont 4 processeurs. Ils prennent en charge les modules de noyau. Ils prennent en charge les noyaux 32 et 64 bits. Nous utilisons la dernière version de Xen (3.2.1), ce qui signifie que nous pouvons prendre en charge les noyaux paravirt_ops (pv_ops), ce qui signifie que nous pouvons avoir des noyaux plus récents que 2.6.18 (que beaucoup de nos concurrents vous obligent à utiliser). En bref, les Linodes seront beaucoup, beaucoup plus rapides sous Xen.

À partir de maintenant, tout nouveau matériel hôte sera déployé sous Xen. Les nouveaux comptes devraient atterrir sur ces machines, mais il y a toujours une chance qu'un nouveau Linode atterrisse sur un hôte UML. Si cela se produit, ou si vous êtes déjà sur un hôte UML et que vous souhaitez passer à autre chose, il vous suffit de soumettre un ticket. Cependant, ce n'est qu'une question de temps avant que toutes nos machines fonctionnent sur Xen - nous annoncerons le calendrier de mise à jour dans les prochaines semaines.


Commentaires (29)

  1. Sean’s Mental Walkabout » Blog Archive » Upgrading my Linode to Xen

    […] (which was painless, but required about an hour of down time). It turns out that all of linode is now going to Xen. Based on very simple latecy tests, the box feels much snappier on serving up wiki […]

  2. Author Photo

    As someone who has been running in the test environment, let me just say it’s fantastic. Of course, the couple times I’ve needed Linode support, it’s been great as well. Thanks for all the hard work, guys!

  3. Author Photo

    Will my ip addresses change if/when I move from UML to Xen? What about the private backend ip; will that one change?

  4. Tom Asaro

    @Harmone Your IPs remain the same as long as you stay within the same data center.

  5. Author Photo

    This is great news. Looking forward to faster Linodes under Xen and the upgrade schedule. Thanks for all the hard work guys!

  6. Author Photo

    @tasaro:

    That sounds lovely. Thanks for everything!

  7. Tragically L33T » Linode: Great Virtualized Linux Moves to Xen
  8. Author Photo

    Will beta Xen users be migrated to the “production” deployments in the future?

  9. Tom Asaro

    Xen beta hosts will be at the top of the upgrade schedule (which is simply a reboot of the host).

  10. Author Photo

    tasaro:

    Weren’t different plan sizes mixes on the beta hosts (ie, host56)? If so, do any migrations need to be made?

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    What kernel should we use after we have migrated to a Xen host? There are a few named “dev ..”. Are they “beta” kernels?

  12. Christopher Aker

    @Harmone You should use “Latest 2.6” unless you have a good reason not to.

    @Jacob On the Xen beta boxes, we’ll eventually move the Linodes of different plans onto their respective host server types. If you want to move off sooner submit a ticket. You shouldn’t notice that much of a difference, since we’re using the cpu scheduling to prioritize the larger Linodes. Again, this is only for the participants of the beta test. New accounts are still segmented onto a host that matches their plan.

  13. Author Photo

    I moved my Linode from UML in Atlanta to a Xen node in Fremont this past week (after having physically relocated myself to the west coast). My new DNS records were propagated by the time all of my data was transferred (~5hrs).

    Big thumbs up to the folks at Linode for a very smooth transition!

  14. Author Photo

    So if I can run a 64-bit kernel, how would I upgrade my Debian system to 64-bit? Didn’t realise it was a 64-bit capable environment!

  15. Christopher Aker

    @Simon Rumble: I’m still hacking on 64 bit Xen guest kernels, but it shouldn’t be too much longer. But yes, our environment will support both.

  16. Sean’s Mental Walkabout » Blog Archive » links for 2008-03-29

    […] Linode Blog » Linodes in Xen linode fully converting to Xen for hosting. Nifty (tags: xen linode hosting) […]

  17. Author Photo

    It’s been mentioned elsewhere that custom kernels may be supported at some point.

    Is it possible that at some point native kernels would also be supported, where the host machine has hardware virtualization? This would be very cool in that it would allow standard installs of Linux distros, and would avoid some of the weirdness when Linode’s kernels aren’t quite the in sync with vendors’s kernels/modules/userspace tools.

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    Nathan A. Corbier

    I’ve been on Xen for two months, and understand why the beta is now concluded. I’ve only had one issue, a hard crash on Dallas52, and not only was it caught and recovered…

    But Linode’s staff quickly submitted enough data to get a patch from upstream.

  19. Author Photo

    Hi ,

    I want to move my Linode from UML to XEN. Is there any risk of data loss or corruption during this migration. How much down time should I expect? Is it possible to time the move during night times when website is less busy?

    I also want to keep the same IP address. If possible do not erase the linode on UML for one or two hours after migration so that I can copy and replace any corrupted files or data. It will also allow some time to test the application.

    I will submit a ticket for the same. But I hope replies to these queries here will help others as well.

    Webmaster,
    PressReleasePoint

  20. Tiny Dynasty » Archive » Migrating website from UML to XEN on Linode

    […]  https://www.linode.com/2008/03/28/linodes-in-xen/ […]

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    Team Simplebucket

    Wow.. We just migrate over to the new XEN hardware… it’s awesome.. huge improvement on performance.. thanks linode!

  22. Author Photo

    I migrated my linode today and must say “WOW”. Simply amazing, without any problem. I see huge improvement in performance. Thanks Linode so much!

  23. Author Photo

    How can I check whether I am on UML or Xen?

    Akshay

  24. Author Photo

    When I’m logged into the Dashboard I can see a Xen icon on the top banner when on a Xen profile, this doesn’t show when for a UML one.

  25. Author Photo

    is it possible to use host-in-a-box lxadmin in linode xen?

    tia.

  26. Sean’s Mental Walkabout » Blog Archive » Dague.net move

    […] couple things changed in the last year. Linode went from UML to Xen, which definitely makes each linode more powerful. My shared hosting company stopped being helpful. […]

  27. Author Photo

    Somebody has to ask…. does this mean we might be seeing FreeBSD?

  28. Author Photo

    hey tell me how to renew my linode account… Form deferent credit card

  29. Author Photo

    Where is the upgrade schedule?

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