this post was submitted on 08 Mar 2025
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177
'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 1 day ago by [email protected] to c/[email protected]
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[–] [email protected] 8 points 22 hours ago (2 children)

Spinning platter capacity can't keep up with SSDs. HDDs are just starting to break the 30TB mark and SSDs are shipping 50+. The cost delta per TB is closing fast. You can also have always on compression and dedupe in most cases with flash, so you get better utilization.

[–] [email protected] 2 points 9 hours ago (1 children)

The cost per terabyte is why hard disk drives are still around. Once the cost for the SSD is only maybe 10% higher is when the former will be obsolete.

[–] [email protected] 1 points 1 hour ago

Please see my original comment.

[–] [email protected] 0 points 20 hours ago (2 children)

You can also have always on compression and dedupe in most cases with flash

As you can with spinning disks. Nothing about flash makes this a special feature.

[–] [email protected] 6 points 19 hours ago* (last edited 19 hours ago)

The difference is you can use inline compression and dedupe in a high performance environment. HDDs suck at random IO.

[–] [email protected] 2 points 18 hours ago

See for example the storage systems from Vast or Pure. You can increase window size for compression and dedup far smaller blocks. Fast random IO also allows you to do that ”online” in the background. In the case of Vast, you also have multiple readers on the same SSD doing that compression and dedup.

So the feature isn’t that special. What you can do with it in practice changes drastically.