I am partly responsible for the uptime of a Windows Server at work. We have only been assigned a small amount of space for backups (50gb or so). This is no way near enough space for backing up .VHDs of the actual server. Instead, the sysadmin says we should just back up important files. I am not sure if he means important system or user files, but either way, this is not really a robust backup strategy. No strategy in terms of media rotation, etc, nothing. I see no value in this - at all.
The server is AD/DNS server, so it has some special considerations. Also, how should I backup AD when there is also a secondary AD on a VM on ESX?
Note: I am a developer but for various reasons (skills gaps, politics), I have the majority of responsibility for doing these sysadmin tasks. I don't mind as I learn a lot, but I have very little support from other people (the sysadmins are very unapproachable so I rely on SE and my trusty books). I am like a semi-professinal system admin and I am an experienced developer. Because I run HyperV at home, this gives me some basic grounding in system administration for Windows Server, thus I am the favourite for all of this.