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MCLives
Contributor
Contributor

VM disconnects instead of vmotion when a server in a HA / DRS cluster fails

When we try and do a fail over test the VM's on the failed host just show a disconnected status? Both Hosts can see the same LUN #'s on our san. And we can broswer the datastore from both hosts. We only have 2 VMS running on cluster seems to happen to both of them.

I can vmoton VM's from one host to the other fine.

Anyone have any ideas? We are running ESX Server 3I, and Virtual Center 2.5

Thanks,

MC

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11 Replies
java_cat33
Virtuoso
Virtuoso

How are you doing your failover test?

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MCLives
Contributor
Contributor

Well I tried 2 ways

1. I shutdown the host from virtual center

2. Unplug the power cables from one of the Hosts.

Both ways gives me same resluts.

Thanks,

MC

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fhpaschen
Enthusiast
Enthusiast

Does the behavior change if you check the option to allow power on to violate availability constraints?

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depping
Leadership
Leadership

did you setup the servers with a default gateway or a second isolation address at least?

Duncan

My virtualisation blog:

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patrickds
Expert
Expert

First, a clarification: HA has nothing to do with vmotion.

vmotion is a migration of a running vm to another host; HA is the functionality where vms from a failed host are restarted on a different host in the HA cluster. Since the failed host has, well,.. failed, there is nothing to vmotion.

So, have you enabled HA on the cluster, and you have not set failover priority for the vms to disabled? (just making sure)

Try disabling en re-enabling HA on the cluster.

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MCLives
Contributor
Contributor

Yes it still happens. The machine fails to start and shows a disconnected status.

Thanks,

MC

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MCLives
Contributor
Contributor

Yes, I have 2 network cards in each server with default gatway set.

Thanks,

MC

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nirubagur
Enthusiast
Enthusiast

MC,

where are the VMX files of the VMs located ?? on the host or on the shared storage. If you have the VMX files on the host, you will be able to do the VMotion but when a host fails, the VMs will remain disconnected. Can you check & confirm this please ??

Niru

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nirubagur
Enthusiast
Enthusiast

and ofcourse don't forget to award the points for the right answers plz..

award points of you found this answer helpful
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MCLives
Contributor
Contributor

Under VMWare Ha -> Virtual Machine Options I have it Set to

Restart Priority set : HIGH

Isolation Priority set: Power Off

Thanks,

MC

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MCLives
Contributor
Contributor

The hosts are install on the direct attached storage, But the Guest VMs are on the shared Lun.

Thanks,

MC

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