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Vmware Cluster Reboot issue

I am newbiee on vmware cluster. We have added 2x Dell R410 with FC card and connected both of them to the storage server.
We have activated HA and DRS options but when we reboot an host it's vms also shutting down why that happens ?
2 Solutions
Vaseem MohammedCommented:
1st you create the cluster, default non of your host will be added to cluster, you need yo add them manually.
If HA is enabled on cluster and the VMs reside on the storage which is available to both host, the VMs will restart on other host.
Well if you meant a complete zero downtime , you need FT also enabled.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
This is to be expected.

VMware HA ONLY provides FAILURE when a host suffers an uncontrolled failure, e.g. it crashes, or the power just goes off.

A Reboot, is a controlled shutdown by a human being!

To test, just pull out the power cord on the server.

VMware High Availability (HA) Product Briefs


VMware Distributed Resource Scheduler (DRS) - Dynamic Resource Balancing


VMware Distributed Resource Scheduler (DRS) Product Briefs

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FireBallITAuthor Commented:
thanks for all answers  
dear techduns is there any way to turn on fault tolerance for all vms in a cluster as a default option ?

dear th
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Are you licensed for VMware FT ?

To turn on VMware FT, you need to go to the VM, and configure it for FT, you also need to have a FT VMKernel Network for traffic.

see also here


also be-aware of the caveats, involved with FT, e.g. difficult to backup, no snapshots.

FireBallITAuthor Commented:
Thank you
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