Hello. I will post these as a public issue, because I hope someone encountered them already. They are dealing with the same thing, migration, a must for virtualization.
So I am trying to migrate from an "old" Cloudmin Pro setup to a new one. I got two servers, both are making use of KVM via their own centralized NFS storage. Why? Because the working server and storage are old, and I intend to use them for failover.
So I installed Cloudmin Pro on the new server, hook up the new storage, configured both; all is fine, I can see my exports, mount, read/write in any directory. And I have a similar setup working.
New System Images... not showing my images? So I figured I could make some images on the old server (and storage) and just copy those on the new one, in the coresponding directory. And install new VMs from there. Problem is they do not appear in Cloudmins interface, nor when creating a new KVM VM, or simply in the Cloudmin settings > New System Images list. I downloaded just for testing a Centos 7 image. Well, well: it does appear in my same /mnt/3-IMGs directory besides my carefully built and useless images. And in Cloudmins interface I can see this (downloaded) one but not mine... I couldn't find a "scan" command in the docs if Cloudmin is not looking directly for the files. Ergo, the directory is properly set, the server reads and writes files, but it is a Cloudmin thing. What can I do?
Restoring backups from the old Cloudmin (same, lates version to date) is not working also. I mean they do somehow - the interface seems to be working, and I can see a dd process that never stops. How can this be? I have VM of 150GB and (tried this yesterday with another VM, the same thing) when I look at the .img file it just grows... I mean right now it's 513GB???
So now I have no option to move my VMs, because you just can't copy them to another system (still, why? is this still an issue?) and import them... :( Please don't tell me to start things all over again...
What use has the backup option then? How can one restore stuff? For example If my working setup will burn in flames (started from scratch the VMs if wondering)?
PS: the hardware is fine, new, storage wise I use ZFS, enterprise grade SSDs, the network is 40Gb/s QSFP Twinax between each server and it's storage and 10Gb/s SFP+ for the internal network between the servers.