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VM disappearing when adding pool device

Featured Replies

Hi,

 

I am trying to add an unassigned device as a pool device (to function as cache for my existing array).

I shut down my Windows VM, stop the array, and add the device as a pool device, then start the array, my Windows VM is no longer listed (and an old Linux VM appears).

When I was initially trying to setup my VM I had issues with it crashing etc. so I made multiple attempts (potentially some past VMs used the same name)...

I need the Windows VM running, so I shut the array down, unassigned the cache device, started the array back up and the old VM is no longer listed, and my Windows one shows up.

I have tried searching for similar issues in past forums, but I still don't understand the issue (or the solution). Past threads talk about /mnt/disk1/system/libvirt/libvirt.img.
 

Help will be appreciated!
 

Solved by JorgeB

  • Community Expert

I don't see anything wrong with the libvirt image, post the output of:

 

ls -lh /etc/libvirt/qemu

 

  • Author

image.thumb.jpg.dd1221d19e5dfb9cb1a7b961ec483e0f.jpg

  • Community Expert

Now post new diags and the same output with the cache device unassigned.

  • Author

Thank you for your help so far Jorge, I have done as you asked, the list it produced on that commands looks to be a different (old) list of files...

image.png.a62bd27b2d9c49f1fd850d0c92717d83.png

pixel-diagnostics-20240720-1306.zip

Edited by Techizare

  • Author

Beer money has been sent in advance.

  • Community Expert
  • Solution

There are two libvirt images, one on cache and one on disk1, see witch one is the correct/better one and delete the other.

 

Thanks for the beer money!

 

 

  • Author

The one on the cache drive is wrong - would it be best to format the cache disk or delete the file? (I don't even know how to go about deleting that image).

I have an m.2 pool device that I had intended to be used for VMs - out of curiosity, in terms of performance, would this be a better place to store the image then the HDD array - or does it not matter too much? I don't really know what function that image serves.image.png.c4120a6ea93810fc1ab8f9a0f2bdd403.png

Edited by Techizare

  • Author

I installed Dynamix File Manager plugin, I deleted the content of the cache drive.

That old VM is still showing.

Things are looking bleak.

  • Author

Turned off the array, turned it back on, and my new VM is showing, with the chase drive.

Posting this for the benefit of future noobs.

Edited by Techizare

  • Community Expert

You can move the image to cache, just disable the VM service first.

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