Cheap HAMR drive ?

[leclod]

I just bought a barracuda 24TB because it was cheap. 

The label warns about laser capacity so it probably is an HAMR drive.

HAMR and cheap, sounds surprising, no ?

Truthfully I hope my cheap drive somehow reaches beyond its poor specifications : 2400h/y and 120TB/y.

What do you think ?

 

 

 

Edited July 5, 2025 by leclod

[Mumintroll]

clatter clatter click clack clatter brrr click click clatter brrr 

[porina]

1 hour ago, leclod said:

HAMR and cheap, sounds surprising, no ?

Might just be needed to hit this density.

 

1 hour ago, leclod said:

Truthfully I hope my cheap drive somehow reaches beyond its poor specifications : 2400h/y and 120TB/y.

That to me makes it sound like a drive intended for "as needed" use and not 24/7 availability. Actually, 2400h/year is just over what you would hit if you ran it for 9 hours a day, 5 days a week, like if it were in a system used for work during typical office hours. 120TB/y is equivalent to 5 surface passes, which doesn't sound like a lot, but still that's a lot of capacity for normal use. I'm guessing the intended use is more for bulk data storage. It will be ideal for backups where you have another copy of something on a more active system. A little more worrying it the uncorrectable error rate, which allows 2 errors in the time it takes to read the whole surface. I'm sure it'll be lower than that in practice, but my cheaper consumer tier Seagate HD is an order or magnitude higher. Error correcting filesystem might be more desirable for this.

 

The cost per capacity in UK seems to be significantly lower than the Seagate 8TB CMR drives I've been buying. About 2x the cost for 3x the capacity. I need to have a think about these!