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Data centers contain 90% crap data

gerrymcgovern.com

41–50 of 146 posts

Re: Data centers contain 90% crap data

#42

> One organization I knew of had 1,500 terabytes of data, with less than 2% ever having been accessed after it was first stored. On a related note, probably a similar percentage of people claim on their car insurance. If only the rest realised they had "crap insurance" and were paying for nothing, they could save so much money! This is obviously sarcasm, but I think it's important to remember that much of the data is…

This is exactly the problem. Consider an order processing system that processes a million orders a day, and retains them for ninety days. What percentage of those 89-day-old orders are actually needed at 89 days old? It could be quite low, maybe a couple thousand out of a million. But if those orders aren't there, shit hits the fan. PCI compliance audits fail. The ability for customers to reconcile their charges with…

> The real question is, how much data do we need to store inefficiently, in a way that uses a lot of power and space?

This is indeed the critical question, and it's far from being trivial.

One issue we all hit is moving the data from the higher tier storage to the cheaper and more efficient one, which requires sync and paying for the transfer most of the time, but also handling two separate access and authorization process, backup and recovery system for data that absolutely needs to be accessible for the few years of legal retention, and can/must completely disappear afterwards.

In most orgs I've seen the cost of going through all that complexity is just not worth it, compared to "just" paying for the higher tier storage for the few years long lifetime of the data.

Re: Data centers contain 90% crap data

#43

Earlier quoted context omitted.

I have ~2.5TB of photos in iCloud, via Apple Photos. Excluding the various sized previews, I doubt many originals have been accessed in quite a while. I also have about 1TB Lightroom library archived to a different service; representing countless hours of photo processing work spanning over a decade. Haven’t touched that one in years. Neither are crap. (Yes, both have other backups and, yes, I’ve probably forgotten t…

Sometimes I wish there was a feasible system to audit and reduce redundant photos in my iCloud. I have an embarassing ton of pictures that I never look at just like everyone else. I wouldn’t mind a tool that said “here’s 10^x photos that are the most similar to all your other photos would you like to put them in the trash?”

Thing is, the tool needs you to pick the one instance that survives the purge. Which means looking through 10^x of mostly similar photos to pick one.

Removing duplicates isn't that complex already, and these tools exist so anyone can try it. It's just a truely grueling process.

Re: Data centers contain 90% crap data

#44

> One organization I knew of had 1,500 terabytes of data, with less than 2% ever having been accessed after it was first stored. On a related note, probably a similar percentage of people claim on their car insurance. If only the rest realised they had "crap insurance" and were paying for nothing, they could save so much money! This is obviously sarcasm, but I think it's important to remember that much of the data is…

True, when it comes to data, there is a strong case to be a compulsive hoarder. It's cheap to store; often free and data is often marginally more useful and interesting than most generic mass-produced old junk which sits in garage gathering dust.

Re: Data centers contain 90% crap data

#46

Earlier quoted context omitted.

This is exactly the problem. Consider an order processing system that processes a million orders a day, and retains them for ninety days. What percentage of those 89-day-old orders are actually needed at 89 days old? It could be quite low, maybe a couple thousand out of a million. But if those orders aren't there, shit hits the fan. PCI compliance audits fail. The ability for customers to reconcile their charges with…

I was just pondering this today, in terms of how much data and objects I create in a Google or Microsoft account, for example, and then they create a burden of cost and maintenance for me down the road. Especially deleting old emails and photos. That's arduous and sometimes poignant as I flush away my personal life story. Cloud services make difficult and sometimes even byzantine processes for deleting stuff, and it'…

I suspect for most cloud providers you deleting data is cheaper because the data is not charged by the byte. But then they like having data, maybe just to train their AI models or for bragging rights to their investors.

For the expiration dates most modern file systems have the concept of arbitrary extended attributes per file. It's quite easy to add meta data like this yourself.

Re: Data centers contain 90% crap data

#47

Make the cost of operating data centers reflect the damage to the environment and see how quickly people optimize. I don’t know how damaging storage is, but that’s the only way to make a difference.

The cost to operate a data center is already, to a close approximation, the cost of its electricity. The data center operator already pays for every joule.

Data centers used ~4% of USA electricity last year, about .15 quads, while the chemical industry used 10 quads, virtually all in the form of fossil fuel. If you are going to start reflecting the externality of energy consumption in the price of goods, information sector will probably not need to adjust anything, while the chemical sector will be fundamentally impaired.

Re: Data centers contain 90% crap data

#48
I agree with the general sentiment here, but don't like the examples. 200 photos per person per year isn't very much! That is all fine.

What really bloats things out is surveillance (video and online behavioral) and logging/tracking/tracing data. Some of this ends up cold, but a lot of it is also warm, for analytics. It bloats CPU/RAM/network, which is pretty resource intensive.

The cost is justified because the margins of big tech companies are so wildly large. I'd argue those profits are mostly because of network effects and rentier behavior, not the actual value in the data being stored. If there was more competition pressure, these systems could be orders of magnitude more efficient without any significant different in value/quality/outcome, or really even productivity.

Re: Data centers contain 90% crap data

#49
When traveling, a funny thought I always have is watching other tourists take the same photos, from the same exact location, knowing it will be backed up to iCloud. I can't help but imagine how much disk space is taken up by duplicates of the exact same photo.

Re: Data centers contain 90% crap data

#50
There are a few arguments here, and yeah, I get it, some of the shit being stored is shit — or shitty versions of content already stored. But the argument that “these pages haven’t been reviewed in 20 years!” is exactly the reason for preservation! We want to be able to read, listen, and review content that is rare.
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