Migrating base install to new disk - how?

ghostoverflow256

New Member
Nov 4, 2025
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Hi,
I currently have two VEs setup under one datacenter, and the first one I wish to move my base install to a new disk.
Specifically, my current disk configuration is as such:
2x 8tb HDDs in ZFS for data
1x 2tb NVME SSD as the root install disk

And I wish to move to:
2x 8tb HDDs in ZFS for data
1x 2tb NVME SSD repurposed for ZFS cache
1x 2tb SATA SSD for the root install

I could not find any records of this on the forum (as the search keeps on excluding syntactically important parts of my search, like "new").
I am very wary of simply re-installing proxmox, as I do not want to mess up my ZFS (as well as firewall rules, gpu passthrough, etc etc), and I'm fairly new to even using virtual servers like proxmox despite being very familiar with linux in general.

Any pointers would be greatly appreciated...