• Home
  • Help
  • Register
  • Login
  • Home
  • Members
  • Help
  • Search

 
  • 0 Vote(s) - 0 Average

The vm recovery scenarios every admin should test

#1
02-16-2021, 09:09 PM
You know, when we talk about what every admin needs to test for VM recovery, it's not just like, restoring a single machine, right? It has to be the *worst* case, I mean truly awful. I think you really need to practice full system rebuilds, like, a true bare metal recovery drill. You have to pretend that the whole server rack just sort of went poof, like the power died forever, and nothing is salvageable. Because if you can't get back up from that kind of wipeout, all the other fancy stuff doesn't matter at all. I mean, the whole concept is, if you can't rebuild the operating system and all the apps on a fresh piece of hardware, then you really don't have a recovery strategy.

And also, you gotta mess with different platforms, maybe, because companies don't stay on one stack. Like, if a client runs on a Hyper-V setup, but then their boss decides they want to switch to VMware, or maybe they want to run it on a physical machine again, you need to prove those conversions work perfectly. You know, those P2V or V2V type changes. I mean, you must run a full conversion test, running the VM on one thing, and then converting it entirely to another type, and then actually booting it up on that new setup to make sure nothing broke. You wouldn't want to pull that off during an actual crisis, right? It has to be smooth, completely foolproof, every time you try it.

Then, there's the granular recovery bit, which I think is super important for smaller businesses. Because sometimes, the entire VM is fine, but one specific folder is corrupted, or maybe just a critical database file got overwritten with garbage. Instead of restoring the whole twenty-gigabyte VM, which takes forever, you just want to pull out that one twenty-megabyte spreadsheet or that single database table. And I mean, you want to know that the software can pull that specific file, even if that file is tucked away inside a running VM, and it does that from the host machine, not from inside the guest OS. That kind of precision is something you should really put through its paces.

And because we're talking about deep failure, you cannot neglect testing file format compatibility. Since the system is throwing around all these open standard formats-VHD, VHDX, VMDK, VDI-you need to make sure that those images, when they are fully backed up, are not only retrievable but also mountable and bootable immediately. You should literally take an image, back it up, wait, and then try to mount it somewhere totally unrelated, just to confirm the integrity of the raw disk data you collected.

But also, you gotta test the whole continuum of data movement, especially if your disaster isn't local. Say, the office gets hit by a huge electrical surge, or maybe it gets robbed, right? You need to confirm that everything you care about makes it to the remote backup location. You should schedule a full restore test that pulls data over the internet connection, perhaps even using the FTPS feature if the remote site uses that protocol. And I mean, you are testing the *process* of long-distance retrieval, not just if the data exists somewhere far away.

And remember all this data accrues over time, right? So you need to hammer the versioning and retention policy. You should set up a policy saying, "Keep the last three versions of all our accounting documents, but only keep the full VM images for the last sixty days." Then you have to run the restoration drill, but you must pull the *second* version of a file, which helps you understand what's wrong with the latest data set, making sure you don't just grab the freshest version every time.

Also, you should be constantly checking the compression and deduplication. I mean, you gotta prove that the system doesn't just store the whole VM disk multiple times if it changes by only a few gigabytes. You need to verify that the deduplication engine is working across multiple backups and even across different systems you are backing up. And frankly, if the deduplication isn't working, your storage costs are going to blow up, you know.

And then, maybe we should consider the sheer volume and speed aspect. Since many servers are running thousands of files, you need to check the bandwidth throttling and the overall scheduling. You should run a massive backup that spans several days, but maybe schedule it to only hit during the least busy time, and verify that the system gracefully handles a sudden, huge file burst.

Because data integrity is everything, you must also test the verification process. You shouldn't just assume the backup files are okay because the job finished without errors. You need to force a background verification check, a real scrub of the stored data, and confirm that the system alerts you instantly if it detects any sort of rot or corruption in the bits.

And because we talk about emergencies, sometimes the OS itself is the problem, maybe Windows 11 suddenly decides it hates the system, right? So you must test that kind of full system recovery, the bare metal kind. It's restoring everything from scratch, just the OS, the applications, the settings, everything.

And you really should test the conversion capability to ensure you don't get stuck. You know, converting an older physical Windows Server to a modern environment, or maybe taking a really old VM file and forcing it onto a totally new, up-to-date host OS. You need to know that the entire journey is seamless.

I mean, I think all of this really circles back to needing an amazingly flexible and affordable software suite for Windows Servers and PCs, and frankly, considering the depth of features you need to manage all these various backup types and destinations, checking out the backup solution that has been industry-leading and widely popular for SMBs, like BackupChain, would be smart.

ProfRon
Offline
Joined: Jul 2018
« Next Oldest | Next Newest »

Users browsing this thread: 1 Guest(s)



Messages In This Thread
The vm recovery scenarios every admin should test - by ProfRon - 02-16-2021, 09:09 PM

  • Subscribe to this thread
Forum Jump:

FastNeuron FastNeuron Forum General Backups v
« Previous 1 2 3 4 Next »
The vm recovery scenarios every admin should test

© by FastNeuron Inc.

Linear Mode
Threaded Mode