Unable to Migrate VMs due to Error:“Device SCSI Controller is a SCSI controller engaged in bus-sharing”

Need to understand if  this is limitation form VMware- not allowing to migrate VMs configured in such manner ?

Do we have any way out to locate such type of Vms in VC/Host using any automatic tool/utility/scripting solution ?

How can we migrate such VMs when i m putting my Host into maintenance mode ?

Can we do it without any down time ?

Can we go with other option like None/Virtual/Physical ?
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patronTechnical consultant Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
This is a limitation of virtual machines, which are "bus sharing"

To be honest with you, these machines should only be used for testing and not production.

You will need to migrate manually.
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patronTechnical consultant Author Commented:
Thanks.

need to understand ,why we can not use this feature in Production ?

How can we share single drive in  MS Cluster configured on VM ?

do we have any other way out  to get this configured in cluster , so that VMs can be migrated ? without downtime ?

Can we have report/pre checek for such vms using powergui/script/utility -to confirm about vms will not be migrated during  Vmotion/Svmotion ?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you are building a Microsoft Failover Cluster you will need to use RDM LUNs and shared storage.

If it's bus sharing you cannot migrate it.
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patronTechnical consultant Author Commented:
actually those vms configured by some other team, so not sure about reason choosing vms with bus sharing ?

Please confirm why we need vms with with bus sharing then ?

as u confirmed earlier it is for testing only not for production..
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you were experimenting with Clustering, and had no shared storage!
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patronTechnical consultant Author Commented:
m sorry didn't get you ?

 how can we share same drive to 2 vms -part of windows cluster  without bus sharing ?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
By using shared storage on a SAN with RDM.

If you want to share a VMDK, you can only use Bus Sharing, and you'll need to migrate manually.
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patronTechnical consultant Author Commented:
So we can not configure MS Cluster @VM level?

or if we can use shared RDM for VM?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you want to use Microsoft Failover Clustering use an RDM.
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patronTechnical consultant Author Commented:
i was looking for some helping docs, to configure ms cluster with out bus sharing...
 checked for url
http://pubs.vmware.com/vsphere-51/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-51-setup-mscs.pdf
checked for step4: given on page 16..
Select the same virtual device node you chose for the first virtual machine’s shared storage disks (for
 example, SCSI (1:0)), and click Next.

How can we configure this with out adding another scsi controller/bus sharing ?

my only motive is to do vmotion for cluster vms without any down time ? can we do that by using any other best way practice..as ms cluster i have to configure on vms running on single esxi 5.1 host or multiple esxi host running in vmware cluster ?

is there any config we can do while choosing scsi bus sharing or new scsi controller: like physical/virtual ..to make this vmotion smooth for ms cluster nodes[vms] on vmware
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I believe your original question is answered. If this post has been helpful please assign points.

Please post a new Question Ref. Clustering and myself or other Experts will be glad to assist.
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patronTechnical consultant Author Commented:
appreciate ur help on this.


Thanks.
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patronTechnical consultant Author Commented:
Thanks.
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