Dear users of phones, tablets, computers, cameras and other instruments which contains data that might be important to you.

Make fucking backups. For the love of what ever you believe in. Copy your dearest and most important files and or documents somewhere else that in case one device goes *poof* you have something you can get back to.

And please, please, please do it regularly.

You will thank your future YOU later.


And actually test the process of recovering from backups...

I have seen a business lose critical systems when it turned out their "backups" only filled one dvd... and left an essentially unrecoverable open file...

@hhardy01 Thanks for mentioning this. It is probably as important as the backup itself! You are absolutely right.

@luricaun A "Backup" isn't really a "Backup" until you have tested that you can recover the content. "Write-Only" "Backups" are all too common.

CC: @hhardy01

@ColinTheMathmo Yes indeed. It's critical to at least make sure you can restore from it.

@ColinTheMathmo @luricaun

Also, recovering data is as you know only part of the task.

Continuity of operations is the goal.

At Tufts, we could and did flop over entire primary datacenter both to test the process and when we rebuilt main center physically. Downtime 1 second. Also for maintenance.

Although I love FOSS and dislike that vmware's a retro-propritiezed version of linux, I became entranced by vmware/ansible/nagios/ldap/database replication for deployment & operation.

Beauty. 🌻

@hhardy01 As always, it depends on context, and your risks should be assessed realistically. When I was working on target tracking systems for marine radar operations, it was OK to be down for 10 to 15 seconds once or twice a year, provided the system came back with all its data.

Losing data at all was unacceptable.

Careful analysis is key to deciding what you really need. Then test, test, test.



Also want to say:

For high availability:

database replication
disk mirroring
tape storage
offline storage
physical copies

Which to use?


@hhardy01 The initial situation was my bad choice of deleting a personal (at home) VM which was formally known as my Nextcloud instance. This is the thread:

For professional and business use I once again agree except maybe the physical copies. This - to me - depends on use case. But better one more copy than one less.

@hhardy01 Well I wasn't in my right mind set at that moment. But thanks.

@luricaun good rule of thumb:

"If data doesn't exist at least three times, it doesn't exist at all."

@lerk So my personal data pretty much wouldn't exist at all. But I learned a heart breaking lesson today.

@luricaun well, I would assume that the government keeps at least two copies of your personal data somewhere. :D

@luricaun Personally I'd recommend a solution like Borg or Restic, most consumer offerings don't offer adequit security. Despite how much Apple likes to champion it.

And if you want sync, SyncThing is great!

@alcinnz I personally use borg for my VMs at home. Business wise I won't get into this because this is a whole other level of what's important. But sure you can extract the basics as well onto your personal use but on a different level probably.

What happened is that I accidentally deleted my Nextcloud VM, re-installed a new one, synced with my phone and data got synced the wrong way. Fortunately I got calendar and contacts saved in June but still, lots of things are just gone.

@luricaun @alcinnz Not automatically overwriting the backups is why I don't consider unversioned synchronization sufficient.

@luricaun @feonixrift 3, 2, 1 is a pretty good rule of thumb:

3 copies
2 are off-device
1 is off-site

@calcifer @feonixrift Yes absolutely the 3-2-1 rule is an excellent way to start with. And I just didn't listen to past me which always, always, fucking always prays this to everybody. This time I messed up badly myself, so. Lesson learned, I guess?

@luricaun If storage media wasn't as expensive as is it. I wish backup tapes where a consumer thing and not an expensive Only For Professionals™ thing :blobfoxsad:

@Genstar Yeah true but then I doubt that I would use it. To be fair a couple of gig of pictures and then mostly PDFs and other stuff is what's really important to me. So that's not a lot and could easily be backed up (encrypted of course) be pushed to some cloud service which in my case would be a cheap VPS.

And guess what I am doing tomorrow. Yes, configuring this shit.

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