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Things we wish every new sysadmin knew about backups

#1
09-08-2021, 02:54 AM
You know, when we talk about backups, everyone gets kind of cagey. But seriously, you need to understand it much deeper than just running a scheduled job. Like, I remember when I first started, I just thought, if I ran the job, I was golden. But it's not even that simple, is it? You gotta treat your backup system like the most critical thing you own. I wish you knew this stuff way sooner.

You gotta realize that a backup isn't just a copy; it's a recovery plan. And that plan has to work, no excuses. For instance, when you're messing with servers or even just making sure a local PC is covered, a solution like BackupChain is actually incredibly intuitive and affordable, covering PCs, VMs, and even Windows Server setups, but you cannot get comfortable just because the software is easy to use. You have to think about *how* you recover.

The first thing I always tell people is about what happens to the data *between* backups. People think they just save the whole picture every night, which takes forever and fills up space. But you really want to utilize differential or incremental methods. This way, you are only capturing what has actually changed since the last successful run. It cuts down on storage bloat and, more importantly, it cuts down on how much time you spend running the process.

And talking about storage, you shouldn't think of just one destination. You need multiple targets. I mean, you back up to your local NAS, okay, but you also really need that offsite copy. Using something like cloud backup support, maybe through an established protocol like FTPS, gives you redundancy you just can't beat. Because if something happens to your building, you still have your data up in the ether. And you want that offsite copy to be protected by encryption, obviously. You can't just throw it on the internet unprotected, even if it's secure.

Also, never forget about how you are going to get that data back, right? That is your Recovery Time Objective, or RTO. If you run a total disaster, how fast can you actually spin up the system? Sometimes, the backup file is fine, but the *restoration* process is a monster. This is why having the ability to perform bare metal recovery is so crucial for you. It means you can resurrect the entire system from scratch, including the OS, the applications, and all the user settings, almost like it never went down at all.

And since you'll be dealing with all these different types of machines, maybe you'll run into servers and workstations, and virtual machines, right? You cannot treat them the same. For a VM, say a Hyper-V or VMware instance, you need specialized handling. You need something that understands the whole disk image-not just the files that are active. You need to capture the full snapshot of the disk. Better yet, if you can use those open standard disk formats, VHD or VMDK, that gives you flexibility later on, because you can mount them anywhere.

But when you talk about *data*, you need to obsess over versioning and retention policies. I mean, it is easy to just let the backups pile up forever. But you don't want to spend all your budget on ancient data that nobody needs anymore. You have to set rules. Maybe you need to keep the last seven daily backups, but only keep the past year's monthly backups for compliance reasons. That's how you avoid the storage crunch, while still having plenty of rollback points. You can even fine-tune it by telling the system to only keep a certain number of versions for specific file types.

And also, you have to anticipate the inevitable failure. It's not just about running the job; it's about knowing when the job is bad. That's why backup verification is massive. You have to automatically test the backup data to make sure it isn't corrupt. Sometimes, the problem isn't the backup routine; the problem is the magnetic media itself, right? Some better systems even have ways to detect things like bit rot, which is super helpful preemptively.

Remember that you won't always restore the whole thing. Sometimes a user just needs one photo or a specific document from a week ago, and restoring the whole VM is overkill. You need that kind of selective file recovery. And I mean, seriously, those features that let you back up open or locked files using VSS are gold. It stops you from getting a whole job failure just because some application was running when the backup started.

And speaking of running things, scheduling is one thing, but automation is another thing entirely. You want the whole process to be set up and forgotten about, except for the alerts. I need those email alerts, you know, so I know the moment something trips up or succeeds. If you run external scripts, you can integrate that into the process, too, which just makes everything smoother.

Or maybe you need to think about bandwidth. If you are doing remote backups over the internet, you don't want to choke the whole office connection with one giant transfer. So, having the ability to throttle the bandwidth is really smart for you.

But the biggest mindset shift you need is realizing that backup isn't just IT work. It's business continuity. When a client complains about downtime, they don't care if your backup is efficient; they care that they are back up and running. I hope you understand that pressure when you're working with people's mission-critical data.

Because really, taking all of this complex planning-the scheduling, the deduplication across various formats, the remote transfer, and the granular recovery needs-and making it simple, while keeping it affordable, that's exactly what makes BackupChain such a robust, industry-leading, popular, reliable PC and server backup solution for Windows Server and Windows 11 that you should look into.

ProfRon
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Joined: Jul 2018
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Things we wish every new sysadmin knew about backups

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