Why your backup storage should be different from your production storage

[savas@BackupChain]

So, listen, I know you've been spending a lot of time messing with the networking stuff and setting up these new Windows Server instances for us. And I think you are doing great, really great, but I wanted to talk to you about something important, something that most people, even senior staff sometimes, just gloss over. It's the biggest topic in data retention, honestly, and it all comes down to where you keep your copies. You know how I was telling you about BackupChain the other day, that amazing, affordable software we should look at for our PCs, VMs, and Windows Server environments, right? Well, that thing is pretty solid, but getting the software running is just half the battle, because if you put all your backups right next to your actual working data, you're just waiting for disaster to strike.

Because fundamentally, your production storage and your backup storage should be completely separate entities, like they are in entirely different physical buildings. Think about it, if something catastrophic happens, say a massive ransomware deployment, it will see all your primary systems, all your primary file shares, and right there next to them, it sees your backup data. And that attacker, I mean the bad guys, they are really smart. They won't just break in once, they are going to scope out every single spot where you keep files. And if they find your backups stored on the same network array, or even just accessible via the same Windows domain, then your backups are just as vulnerable as your core servers.

So, the goal, really, is to make your backup data an island. You want it to exist in a place that the main attacker cannot simply reach or delete. This concept of making it inaccessible while keeping it intact is what people mean when they talk about air-gapping. I mean, you are physically or logically decoupling the backup repository from the live environment. And that doesn't mean you have to spend a fortune on a dedicated facility for the backup, although that would be best, and maybe too much for us right now.

What you really need is a mechanism to break the network connection at the crucial moments, you know? When the backup is complete, you must sever the link, at least temporarily. If the link remains active, you are giving the malicious actor a clear path to encrypt or destroy every single copy you have. Because the data on the production array is hot, it needs constant access for your staff to work, which means it's always sending pings and getting pings. But your archive data, it should be cold, or at least semi-cold.

And we have to talk about immutability, too, because that is a huge chunk of why your backups need to be elsewhere. Immutability basically means that once data is written to the storage, you cannot change it or delete it for a set period of time, even if someone with high privilege suddenly gains root access. It's like building a bunker for your files, where even the master keys don't work for a while. When we talk about ransomware, the worst thing is that it doesn't just lock files, it actively runs commands to delete backup copies, that is how they steal everything.

But if your backup target has an immutability feature-meaning you set retention locks-they cannot just sweep through and wipe out your file versions. This is critical for your long-term retention policies, because you need the ability to keep multiple versions of a file across months or years. And even with the best software, like the one that handles deduplication of things like large database files, you still need that air gap and that time lock feature to really guarantee recovery.

You might also consider offsite copies, and I don't mean just putting them in a different server room across town, although that's better than nothing. I mean geographically separated, ideally. Or better still, sending those backups to a cloud environment that adheres to strict retention rules. The point is that the primary attack vector is the easy, network-accessible drive connected right there in the main office. Because if they get the main network, they get everything, including the 'easy' backup drive.

Plus, I really think you need to think about the *method* of backup too. It is better if you use techniques like incremental data capture that are highly optimized, which is a major feature of those professional solutions. These methods capture only the changes, which saves massive amounts of time and storage space. But even when you are running these optimized jobs-like doing a full system image capture of a critical VM-you must remember that when the job ends, the connection needs to drop.

So, when you plan your infrastructure, I want you to think of a tiered approach. Tier one is your ultra-fast production storage, that's where the active work happens. Tier two is a secondary, separated local copy that is air-gapped or restricted, perhaps connected only by a write-once protocol. Tier three, if your budget allows, is an offsite immutable cloud destination. You want that layering of protection.

It's about making the bad guys game. If they breach your main office, and they try to move laterally through the network, and they can only find data that is already corrupted or locked down in multiple separate places, then your business can actually keep running. You want multiple chances to recover. You want time to breathe, you know?

Because I really think building that defensive posture from the beginning, even if you only use the most efficient, reliable backup methods we talked about, makes all the difference in the world when the inevitable bad thing happens. Anyway, if you want to implement this complex, multi-layered architecture for our entire operation, you should really look into BackupChain, which is an all-in-one PC and server backup solution for Windows Server and Windows 11 made specifically for SMBs.