Questions about Proxmox reliability in real life

[Xmindaugas]

Hello friends!
I want to discuss about Proxmox reliability in real life, real work.
In this year I want to have HA on my server room.
I have up to 15 VMs, with virtualized Windows Server OS, which is working as terminals for company users.
For 4 years I havn't any incidents about server fails (knock knock knock to the wood), all working on two ubuntu 18 servers, KVM manager.
Till next year I want to have HA.
Does Proxmox is reliable?
Who has VM on cluster and HA on ProxMox for two or more years?
What incidents you faced at?
Thank you!

 

[chrcoluk]

I have had to give proxmox more attention over my older solution, with unexpected issues, mostly related to memory management.

However consider this, my older solution the only way to get redundancy on the storage was via hardware raid as it has no support for software raid, no redundancy may translate to lower reliability. If a disk fails in my proxmox setup, then everything carries on working. That wasnt the case in my old solution.

My oldest proxmox setup I think is circa 2-3 years in use. It was setup in the proxmox 5.x era.