[CentOS] How to prevent virtual machines running twice on the disk images?

2012-05-11 Thread Theo Band
I use KVM on two identical centos5 hosts. I can live migrate the virtual machines from one to the other and it works great. Once I do this, I can see VM definitions on both hosts using virt-manager or virsh list --all On one machine the VM is running, on the other it reports shut off. The disk

Re: [CentOS] How to prevent virtual machines running twice on the disk images?

2012-05-11 Thread Regendoerp, Achim
-Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Theo Band Sent: 11 May 2012 11:51 To: CentOS mailing list Subject: [CentOS] How to prevent virtual machines running twice on the disk images? I use KVM on two identical centos5

Re: [CentOS] How to prevent virtual machines running twice on the disk images?

2012-05-11 Thread Theo Band
On 05/11/2012 01:07 PM, Regendoerp, Achim wrote: -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Theo Band Sent: 11 May 2012 11:51 To: CentOS mailing list Subject: [CentOS] How to prevent virtual machines running twice on the disk

Re: [CentOS] How to prevent virtual machines running twice on the disk images?

2012-05-11 Thread Regendoerp, Achim
-Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Theo Band Sent: 11 May 2012 12:28 To: CentOS mailing list Subject: Re: [CentOS] How to prevent virtual machines running twice on the disk images? On 05/11/2012 01:07 PM, Regendoerp

Re: [CentOS] How to prevent virtual machines running twice on the disk images?

2012-05-11 Thread Tait Clarridge
On Fri, 2012-05-11 at 12:51 +0200, Theo Band wrote: I use KVM on two identical centos5 hosts. I can live migrate the virtual machines from one to the other and it works great. Once I do this, I can see VM definitions on both hosts using virt-manager or virsh list --all On one machine the

Re: [CentOS] How to prevent virtual machines running twice on the disk images?

2012-05-11 Thread Paul Heinlein
On Fri, 11 May 2012, Theo Band wrote: I use KVM on two identical centos5 hosts. [] My question is, how can I prevent host A from starting a shut off VM that actually has been migrated to host B? The VM could actually be running on any another host. It could also have been crashed. The

Re: [CentOS] How to prevent virtual machines running twice on the disk images?

2012-05-11 Thread Theo Band
On 05/11/2012 06:06 PM, Paul Heinlein wrote: On Fri, 11 May 2012, Theo Band wrote: I use KVM on two identical centos5 hosts. [] My question is, how can I prevent host A from starting a shut off VM that actually has been migrated to host B? The VM could actually be running on any another