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PCNS 4.2 migrates VMs to host that is affected by critical UPS event

Discussion in UPS Management Devices & PowerChute Software started by Ed , 10 days ago
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  • edtarento
    Ed
    Novice Novice
    Ed 10 days ago

    Customer with PCNS 4.2 installed on Windows.

    2 x UPS groups 

    Group A has 2 UPS, protecting 2 x ESXi hosts in cluster with DRS Fully Automated.  Pulling power on both UPS at the same time, causes "Maintenance mode" on one host which results in DRS migrating VMs to the other host.  PCNS User Guide, PowerChute Network Shutdown v4.2 VMware 990-4595E-001 07/2016, p26 under "Virtual Machine Migration" states:

    If you enable Virtual Machine migration, use the Duration field to set the time allowed for the VMs to migrate to another healthy Host in the Cluster. VMs will not be migrated to Hosts that are powered off, in a disconnected state, in maintenance mode, or affected by a UPS critical event.

    Why is PCNS migrating VMs to the other host in the cluster that is affected by the same UPS Critical event?  How do I stop this behaviour?  Customer prefers to issue VMware Shutdown to hosts (rather than enter maint mode) which they advise will result in VM shutdown, not migration, under DRS Fully Automated.

    Thanks

  • wpasquil
    Bill
    =S= Representative
    Bill 8 days ago (in response to Ed)

    Hi,

    Both hosts need to be in maintenance mode to prevent the VMs from migrating. Are both hosts listed in PowerChute host protection summary as protected hosts? 

    On 4/15/2018 6:00 AM, Ed said:

    Why is PCNS migrating VMs to the other host in the cluster that is affected by the same UPS Critical event?  How do I stop this behaviour?  Customer prefers to issue VMware Shutdown to hosts (rather than enter maint mode) which they advise will result in VM shutdown, not migration, under DRS Fully Automated.

    We are looking to add the option of not putting the host into maintenance mode and adding that feature to a future release. 

  • edtarento
    Ed
    Novice Novice
    Ed 7 days ago (in response to Bill)

    Thanks for the reply Bill

    Yes, both hosts are listed as protected and the cluster consists of only those 2 hosts.

    Can you provide an update on the feature request?  Has it been considered?  Favourably?  Any ETA?

    Looking through this forum it appears there are a lot of us (desperately) wanting this feature.

    Thanks for you ongoing and prompt responses

    Ed

     

  • wpasquil
    Bill
    =S= Representative
    Bill 7 days ago (in response to Ed)

    Hi,

    On 4/17/2018 6:11 PM, Ed said:

    Can you provide an update on the feature request?  Has it been considered?  Favourably?  Any ETA?

    Yes it has been considered and should be implemented in the next release. Unfortunately I do not have an ETA. 

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