I have decided to upgrade from OMV2 to OMV3, after using 2 for a couple of years. So far as I understand it from reading other posts, it's best to do a clean install. My OMV2 NAS runs as a headless home server, running on an old desktop PC box with more storage added. It has an AMD64 processor, 120GB SSD, 8GB RAM, hard disks pooled using Greyhole, and Plex/PlexPy. I'm happy to send more specific hardware info if needed. I don't currently have the money for hardware upgrades, and as far as possible I want to set up the upgrade to replicate the setup of this one, which I understand and know how to use.
I have two specific questions which I'm not sure about, and then a list of actions I intend to take, which I'm hoping for feedback on.
Question 1: Is it possible to migrate the contents of my Greyhole shares out of the GH pool, and back to a single hard disk (subject to all the usual precautions about backing up first)? This seems to me like the simplest/least risky way to make the migration: once I create shares in the new install, I can do them all from a single disk and then set up GH with that disk as the 'master'. If it is possible to do what I am saying, how do I do it?
Question 2: I'd like to take my Plex databases/PlexPy listening history with me to the new machine, and apparently this can be done. Has anyone else had experience/encountered problems doing this? Or is it better for everything to be set up fresh?
Those two questions aside, does the following workflow for the upgrade make sense? Is it missing anything important? Am I making anything too complicated?
- Clone system SSD for disaster recovery
- Backup storage drives (ditto)
- Progressively remove drives from the GH storage pool until there is one left (this feels sketchy to me but maybe it is this simple, see q1 above) and then switch off Greyhole
- Install OMV3 from ISO
- Add and set up plugins, shares, etc.
- (possibly) migrate Plex installation
- Recreate GH storage pool
I'd love any advice or feedback people can offer.
Thanks!