# Deployment.num file

**URL:** <https://forum.opennebula.io/t/deployment-num-file/8540>\
**Category:** Installation & Configuration\
**Created:** [June 18, 2020, 7:04am UTC](https://forum.opennebula.io/t/deployment-num-file/8540 "2020-06-18T07:04:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![hongyebj](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/hongyebj/32/6332_2.png) [@hongyebj](https://forum.opennebula.io/u/hongyebj)\
**Post date:** [June 18, 2020, 7:04am UTC](https://forum.opennebula.io/t/deployment-num-file/8540/1 "2020-06-18T07:04:50Z")

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Hello everyone:  
Does the virtual machine generate a deployment.num file in its directory every time the virtual machine is started?  
thank you very much  
 ![image](https://canada1.discourse-cdn.com/flex031/uploads/opennebula/original/2X/9/945c84e2ac7846100ffe29a65f16ac0817d92acf.png)

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**Author:** ![atodorov\_storpool](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/atodorov_storpool/32/5327_2.png) [@atodorov\_storpool](https://forum.opennebula.io/u/atodorov_storpool)\
**Post date:** [June 18, 2020, 7:58am UTC](https://forum.opennebula.io/t/deployment-num-file/8540/2 "2020-06-18T07:58:39Z")

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Hello @hongyebj,

Yes. OpenNebula generate new deployment.X (VM definition XML) file on each VM start.

Best Regards,  
Anton Todorov

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**Author:** ![hongyebj](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/hongyebj/32/6332_2.png) [@hongyebj](https://forum.opennebula.io/u/hongyebj)\
**Post date:** [June 18, 2020, 8:07am UTC](https://forum.opennebula.io/t/deployment-num-file/8540/3 "2020-06-18T08:07:04Z")

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Ok. thank you very much!  
I would like to ask where is this VM definition XML file. Thank you.

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**Author:** ![atodorov\_storpool](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/atodorov_storpool/32/5327_2.png) [@atodorov\_storpool](https://forum.opennebula.io/u/atodorov_storpool)\
**Post date:** [June 18, 2020, 8:11am UTC](https://forum.opennebula.io/t/deployment-num-file/8540/4 "2020-06-18T08:11:16Z")

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> [@hongyebj](#):
>
> I would like to ask where is this VM definition XML file. Thank you.

The file is generated by the OpenNebula core service (oned) on the fly just before it is passed to the deployment driver in _/var/tmp/one/vmm/kvm/deploy_ on the KVM host.

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**Author:** ![hongyebj](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/hongyebj/32/6332_2.png) [@hongyebj](https://forum.opennebula.io/u/hongyebj)\
**Post date:** [June 18, 2020, 9:39am UTC](https://forum.opennebula.io/t/deployment-num-file/8540/5 "2020-06-18T09:39:33Z")

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Hello @Anton Todorov  
Thank you very much.  
I wonder if you can answer this question,[VMS attached GPU failed to start](https://forum.opennebula.io/t/vms-attached-gpu-failed-to-start/8507)  
Thank you very much.