SustainedCloudIT terms, explained in plain language.
What a term means, why it matters for your business, and what you should do about it. No jargon, no filler.
NIS2
The EU cybersecurity directive that turns IT security into a management duty for roughly 30,000 German companies.
What is NIS2?Managed Service Provider
An IT partner that runs your infrastructure continuously for a flat monthly rate, instead of billing you by the hour after things break.
What is a Managed Service Provider (MSP)?3-2-1 backup rule
Three copies of your data, on two different media, one of them off-site: the minimum standard for backups that survive real incidents.
What is the 3-2-1 backup rule?RTO & RPO
The two numbers that define what an outage really costs you: how long recovery takes, and how much data you lose.
What do RTO and RPO mean?IT downtime costs
Wages keep running, revenue stops, recovery adds overtime: how to put a real number on an outage, with a calculator for your own figures.
What does an hour of IT downtime cost?VLAN
A virtual network segment that separates devices on shared hardware: office, guests, machines and telephony each in their own lane.
What is a VLAN?Ransomware
Malware that encrypts your data and extorts payment: the most expensive IT incident a business can have, and largely preventable.
What is ransomware?On-premises
IT that runs on hardware you own, in your building or a datacenter of your choice, instead of rented from a hyperscaler.
What does on-premises mean?Proxmox
The European open-source virtualization platform many companies are migrating to since VMware's licensing changes.
What is Proxmox?Local AI
Language models on your own servers: the hardware, budget and data you actually need, with a calculator for a first estimate.
What does it take to run AI on your own hardware?Book a free infrastructure assessment.
A no-commitment look at your setup. What's healthy, what's at risk, and what to fix first. Real answers, no pressure.