I am in the process of migrating 150+ VMs running on Rhevm4.1 to    KVM based OpenStack installation ( Ussuri with KVm and glance as image storage.)

What I am doing now, manually shutdown each VM through RHVM GUI  and export to export domain and  scp those image files of each VM to our OpenStack controller node and uploading to glance and creating each VM manually.

query 1.

Is there a better way to automate this migration by any utility or scripts ?

Any one done this kind of automatic migration before what was your approach?  Or whats the better approach instead of doing manual migration ?

Or only manually I have to repeat the process for all 150+ Virtual machines?  ( guest VMs are  CentOS7 and Redhat Linux 7 with LVM data partitions attached)

Kindly share your thoughts.. 

Query 2. 

 

other than this 150+ VMs Redhat Linux 7 and Centos VMs  on Rhevm 4.1, I have to migrate  50+ VMs  which hosted on hyperV.

  

What the method / approach for exporting from HyperV and importing to  OpenStack Ussuri version  with glance with KVM hpervisor ? ( This is the ffirst time I am going to use hyperV, no much idea about export from hyperv and Import to KVM)

  Will the images exported form HyperV(vhdx image disks with single disk and multiple disk(max 3 disk)  VMs) can be directly imported to KVM ? does KVM support this or  need to modify vhdx disk images to any other format ?

What is the  best approach should be in case of HyperV hosted VMs( Windows 2012 guest machines and Linux guest machines ) to be imported to KVM based OpenStack(Ussuri version with glance as image storage ).

Thanks in advance

Kris