Is it possible to create a server-based Hyper-V failover cluster in Hetzner?

Question

Clustering

Good afternoon!
There are several iron servers at Hetzner. One of them is the Dell PowerEdge 720 and a few more simpler ones. Servers are now used as Hyper-V hosts, each server lives on its own with its own bunch of virtual machines.
What I want to do:
1. Shared storage for virtual machine disks. I only see it as iSCSI. Ideally, there would be 2 storages and they would be replicated and backed up to the heap. How reliable is iSCSI for this kind of use?
2. Two or three Hyper-V hosts with VM migration.
3. Manage it all from SCVMM.
The main question: Is it possible to do all this in the realities of Hetzner with their internal 1Gb network?
Another question was born: How to combine Hyper-V hosts in the internal Hetzner network into a secure domain network?

Answer 1

1 gbe is fine for creating a Hyper-V cluster, but it must be more than one to work well. Refer to Hyper-V host network planning best practices (google Hyper-V capacity planning and search Microsoft docs). iSCSI is fine for your purpose, but since WS2012r2 it's possible to build a Hyper-V cluster on top of SMB 3.0 storage (i.e. regular network shares) -- and it's better to use this option if you don't have specific requirements for using iSCSI, as sometimes SMB shows significantly better performance (in my environment - twice). Both technologies support Multipath, both will perform well on 1 gbe links.
In more detail, alas, I can’t tell you - I didn’t work with Hetzner and I don’t know the specifics of their environment.

Answer 2

Another question was born: How to combine Hyper-V hosts in the internal Hetzner network into a secure domain network?

After reading the wiki, Hetzner found out that you can stack all your servers in one rack and combine them into one LAN. The truth is it costs money.
All other issues in such hands are resolved. I'm afraid only for iSCSI performance.