this post was submitted on 08 Mar 2025
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179
'Writing is on the wall for spinning rust': IBM joins Pure Storage in claiming disk drives will go the way of the dodo in enterprises (www.techradar.com)
submitted 2 days ago by Sunshine@lemmy.ca to c/technology@lemmy.world
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[–] NeuronautML@lemmy.ml -2 points 2 days ago* (last edited 2 days ago) (7 children)

I doubt it. SSDs are subject to quantuum tunneling. This means if you don't power up an SSD once in 2-5 years, your data is gone. HDDs have no such qualms. So long as they still spin, there's your data and when they no longer do, you still have the heads inside.

So you have a use case that SSDs will never replace, cold data storage. I use them for my cold offsite back ups.

[–] MonkderVierte@lemmy.ml 4 points 2 days ago (2 children)

You're wrong. HDD need about as much frequently powering up as SSD, because the magnetization gets weaker.

[–] floquant@lemmy.dbzer0.com 2 points 2 days ago

Note that for HDDs, it doesn't matter if they're powered or not. The platter is not "energized" or refreshed during operation like an SSD is. Your best bet is to have some kind of parity to identify and repair those bad bits.

[–] NeuronautML@lemmy.ml 2 points 1 day ago* (last edited 1 day ago)

Here's a copy paste from superuser that will hopefully show you that what you said is incorrect in a way i find expresses my thoughts exactly

Magnetic Field Breakdown

Most sources state that permanent magnets lose their magnetic field strength at a rate of 1% per year. Assuming this is valid, after ~69 years, we can assume that half of the sectors in a hard drive would be corrupted (since they all lost half of their strength by this time). Obviously, this is quite a long time, but this risk is easily mitigated - simply re-write the data to the drive. How frequently you need to do this depends on the following two issues (I also go over this in my conclusion).

https://superuser.com/questions/284427/how-much-time-until-an-unused-hard-drive-loses-its-data

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