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Home » Spaces » UPS Management Devices & PowerChute Software » discussion » General » Why should an ESXi host go into maintenance mode?

Why should an ESXi host go into maintenance mode?

Discussion in UPS Management Devices & PowerChute Software started by Gabrie , 11/5/2016 3:24 PM
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  • Gabrie
    Gabrie
    New Member New Member
    Gabrie 11/5/2016 3:24 PM

    Hi,

    I've been reading some forum posts on Powerchute and the shutdown procedure and learned that the first step the powerchute software does, is bring the hosts in maintenance mode. For some of your customers this causes a lot of unwanted VMotions because of DRS being enabled. Your suggestions is to disable DRS. Why not make it an option to first shutdown all VMs and then enter the hosts in maintenance mode?

    For bigger environments where hosts are spread over multiple APC's, I can understand that you're going for maintenance mode first, hoping that some hosts in the same cluster are on a different APC which has no power failure and then move all VMs to those hosts. 

    But smaller environments that only have on APC to protect that hosts are better of with a shutdown of the VMs first and then triggering maintenance mode. 

    With the option to move maintenance mode into first or second place, you would make all types of install happy.

    How about in the next release???? :-) :-) :-)

  • JonPro
    Jonathan
    =S= Representative
    Jonathan 11/7/2016 9:19 PM (in response to Gabrie)

    Thank you Gabrie for your comments and suggestion. I will let our Software Development team know about this.

  • wpasquil
    Bill
    =S= Representative
    Bill 11/8/2016 3:05 PM (in response to Gabrie)

    Hi,

    The scenario you described occurs when DRS Automation Level is set to Fully Automated. The reasoning behind starting the maintenance mode task when a shutdown sequence occurs is to prevent VMs from being migrated to an affected host.

    If PCNS does do this then there is a chance that DRS could migrate a VM to a host during or after the VM shutdown step - this would lead to the VM not being gracefully shut down. To avoid unnecessary vMotions we recommend setting the DRS Automation level to Partially automated (as opposed to disabling it completely).

  • Gabrie
    Gabrie
    New Member New Member
    Gabrie 11/8/2016 7:27 PM (in response to Bill)

    Why not have PowerChute record the current DRS setting, then change DRS to partially automated and perform the steps. And after the environment starts running again, PowerChute only needs to change the DRS setting back to the original setting.

    We have too many client environments where we really need fully automated DRS. 

  • wpasquil
    Bill
    =S= Representative
    Bill 11/9/2016 6:50 PM (in response to Gabrie)

    Hi,

    We'll look at it for a future release.

  • edtarento
    Ed
    Novice Novice
    Ed 4/16/2018 5:37 AM (in response to Bill)

    Hi Bill

    Love the sound of this feature for my large customer.  Did / will it get implemented?

    Regards

    Ed

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