Export VM disk from LVM storage coming from another host

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nautilus7

New Member
Nov 6, 2023
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Hi, I have 2 proxmox hosts.
I had an ssd drive connected to host 1, configured as lvm storage. It contains the virtual disk of one VM.
A couple of days ago, I removed this ssd from host 1 and connected it to host 2.
Unfortunately, I forgot to copy the virtual disk before removing it, so now I need to recover this vm's disk.

Is there a way to do it from host 2 without connecting the ssd back to the orignal proxmox host?
 
Hi @nautilus7 ,
Since the disk is stored as raw block device on top of LVM slice, you should already see this disk when you list LVM slices: lvs

However, the name of the parent group (vgs) must not overlap with existing names on the new hosts. You will get a warning if it does.
Once you confirmed that you can see the LVM slice of the VM in question, you can then :
a) create a VM with the same ID, "qm disk rescan" to bring the disk into the configuration, assign the disk to a controller
b) if ID is taken , you can still do (a), then move the disk to another VM
There are a few other ways, but the above two are the simplest.

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Thread 'proxmox 8 add existing lvm disk to new installation of proxmox'

Hello Everyone i have had to reinstall my proxmox host after an accident but all my vms where created on a seperate disk from the disk i had to reinstall proxmox . I am now trying to add my old existing LVM to the new installation. It shows up in the node LVM but not sure how to reattach it and have access to the content. Do i just go to the datacenter and click storage then add it there?
pve3.jpg
https://www.reddit.com/r/Proxmox/comments/w8o7va/import_old_lvm_storage_drive_to_new_proxmox/


Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
 
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