kvm lvm migration

[ccube]

Hi, I have two proxmox 1.9 machines in one cluster.

The kvm-virtual machines are in a lvm. Is there any possibility to migrate the vms to another node without making backups?

regards

 

[ahe]

Just use migrate in the GUI.

If it is not shared storage, you need to turn off the machine first.

Best regards

 

[ccube]

the machine is turned off. whe using migrate i get an error that 'lvm' storage is not supported.

 

[ahe]

Ok - i assume you use LVM on local storage then.

You can simply create the new machine and disk with the same properties, and then manually copy the content from the old LVM, one way to do it from the old machine

cat /dev/xxxx/oldlvmdisk |ssh newserver.xxx “cat > /dev/xxx/newlvmdisk”

Best regards

 

[ccube]

ok. what kind of lvm storage can i use to migrate with gui?

 

[ahe]

Shared storage - ex LVM storage hosted on ISCSI - OR - just files on shared NFS storage.

Best regards

 

[ccube]

ok. so i also need shared storage for offline migratio?. i thought it is only neccesary for online migration.

thanx for helping out

 

[ahe]

If you use files on "local" storage you can do offline migration.

Best regards

 

[ccube]

okay. but i lose the ability to make backups without turning off i think?

 

[ahe]

With local files the backup will do a snapshot of the whole LVM while doing backup, including all virtual files - works, but is possibly slower.

Best regards