Server upgrade: Move OMV4 vs upgrade vs new install OMV5

Hi there OMV Community!

It is time for me to upgrade the hardware on which my NAS sits and I have a dilema.

Right now OMV4 is running on a HP Proliant Miniserver N54L with 12GB RAM. The OS is on a 128GB SSD (where only 13GB are busy) and the storage is made from 3 x 4TB WD Red in a ZFS pool equivalent of Raid 5.

I plan to build a custom computer that will hold the NAS but also some other services based on a AMD Ryzen 7 1700.

My question is what would be my best alternative in this case:

1. clone or use OS SSD in the new build and continue with OMV4

2. upgrade the OMV4 to OMV5

3. install directly a fresh copy of OMV5

I would also mention that the OS disk for the new build is a NVME so I will use the old 126GB SSD as fallback scenario.

I am comfortable with terminal and getting my hands dirty, I would just avoid a very big loss of time.

Also from my initial judgement: 1 is easy but temporary, 2 is prone to upgrade problems, for 3 I would need to make a lot of settings but I would have the chance to do them on clean.

Thank you for the support!

Thanks for the advice. I will take it. I will clone the actual OS and make the upgrade on the clone. If something goes south I can "reclone" and change approach.