Three VMs in three separate Volume groups i.e of three physical disks(i.e actually single one disk).

[wasim.devops]

Overview Details:

I had done a proxmox installation 2 months ago.
While installation, It provided option to select one disk of 3.7Tb and in that i have installed proxmox.
Installation completed with that and had two separate volumes : i.e Local-lvm & local(500Gb) .
Further Due to some requirements I have extend the disk from 3.7GTb to its actual physical size i.e of 10.92TB with lvextend -l +100%FREE /dev/pve/data.

Image 1


Image2



Image3


Now I have cleaned data from this 11Tb Disk(local-lvm) & also from local I am cleaning the data as well.


Requirement:-
And now the requirement is to have three VMs installation in three different physical groups.
But during the VM creation option—> it doesn’t show the option that option and it show single local-lvm as per below Image4.

Image4 .



Please suggest the steps or approach to have different local lvms i.e local-lvm1 --> disk1 , local-lvm2--> disk2 , local-lvm3 --> disk3.
Or to have three vms created in three separate disks in separate volume groups.

Thanks


@bbgeek17 & Team ,
Please help and some suggest some approach.

 

[Richard]

Image4 .

View attachment 44895

Please suggest the steps or approach to have different local lvms i.e local-lvm1 --> disk1 , local-lvm2--> disk2 , local-lvm3 --> disk3.
Or to have three vms created in three separate disks in separate volume groups.

Thanks


@bbgeek17 & Team ,
Please help and some suggest some approach.

AFAIU you want to have the virtual disks hosted by 3 different physical disks. In this case you have to configure 3 different storages - expandig a LVM group across 3 disks is not a solution for this.

For considering the situation comprehensively more information is necessary, running a pvereport will show the requested one.

 

[bbgeek17]

You need to breakup your existing LVM VG and create two new ones. It can be done but not without a risk.
Plug this into google "remove disk from pv", one of the first results that comes up for me:
https://access.redhat.com/documenta..._volume_manager_administration/disk_remove_ex

At first glance it appears like what you need. Obviously specific details of your environment matter here. If there is important data on the system - back it up, there is always a risk of data loss.

Additionally, you are running a type 1 hypervisor already. Setup a Debian VM, you can even use Proxmox ISO. Add 2 more disks to it. Replicate your physical environment setup and experiment with VM first.

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