Migrate Single Disk to Mirror

[sgtpepperaut]

I currently have a single SSD where PROXMOX and some VMs reside. All Data and VMS are backuped up. To decrease chance of downtime i would like to migrate from a single SSD disk to a mirror. Is this possible or is a new install and restore required? I might as well take my chances if i have to reinstall and reconfigure anyways.

I am also setting up a 2 Machine Cluster. If 1 machines OS disc goes down and i reinstall a fresh Proxmox can PM get its config back from the other Machine in the cluster?

 

[LnxBil]

I currently have a single SSD where PROXMOX and some VMs reside. All Data and VMS are backuped up. To decrease chance of downtime i would like to migrate from a single SSD disk to a mirror. Is this possible or is a new install and restore required? I might as well take my chances if i have to reinstall and reconfigure anyways.

Depends heavily on the used storage technique. With ZFS and hardware raid, it should be very easy without downtime (assuming hot-plug), everything else needs a reinstall.

I am also setting up a 2 Machine Cluster. If 1 machines OS disc goes down and i reinstall a fresh Proxmox can PM get its config back from the other Machine in the cluster?

First, don't have a single point of failure (SPOF) in a disk. Use at least RAID1 everywhere. Second, backup your system and restore it in case of a disk problem, don't reinstall.