VMware vSphere

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  • 1.  Revert automatically to snapshot on restart

    Posted Jul 18, 2012 12:11 AM

    Hi all,


    I would like to know if it's possible that the guest OS on ESXi 5 could revert to a snapshot on restart automatically .


    Thanks in advance



  • 2.  RE: Revert automatically to snapshot on restart

    Posted Jul 18, 2012 12:57 AM

    Not sure what you are trying to achieve, but did you considered using non-persistent disk, so that everytime you reboot, VM would get back to the original  state.

    Also, there is another thread that I came across which could be helpful in reverting back the snapshot through powercli scripting http://communities.vmware.com/thread/152654

    -vCloud9



  • 3.  RE: Revert automatically to snapshot on restart

    Posted Jul 19, 2012 08:48 AM

    Hi;

    Here is my understanding, to achieve an automatic revert to a snapshot each time the VM is halted (in purpose), you can either use a non-persistent disk (as vCloud9 mentioned) or the advanced configuration parameter snapshot.action = "autoRevert".

    I had once a related problem, after a power outage occured on all my cluster's hosts, a VM reverted to a snapshot automatically and not intentionally (use of a persistent disk and snapshot.action = "keep").

    Not sure if it's what you're asking about Gladio.

    Anyway, I noticed something strange in the vCenter events, a session has been opened from the VM (IP_@=172.16.1.185) which was reverted

    info      15/04/2012 20:16:04     Administrateur          Tâche : Restaurer le snapshot
    info      15/04/2012 20:16:03     Administrateur          L’utilisateur Administrateur@172.16.1.185 est connecté
    info      15/04/2012 20:16:03     Administrateur          L’utilisateur Administrateur est déconnecté
    info      15/04/2012 20:16:03     Administrateur          L’utilisateur Administrateur@172.16.1.185 est connecté
    info      15/04/2012 20:15:44     Administrateur          L’utilisateur Administrateur est déconnecté
    info      15/04/2012 20:15:44     Administrateur          L’utilisateur Administrateur@172.16.1.185 est connecté
    info      15/04/2012 20:15:44     Administrateur          L’utilisateur Administrateur est déconnecté
    info      15/04/2012 20:15:44     Administrateur          L’utilisateur Administrateur@172.16.1.185 est connecté

    And what is more strange is that this scenario occured only on this particular VM !!!!!