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Trigg3r | 4 years ago

Bit of a blast from the past, I did own one of these and certainly it felt faster than anything I had used before. Am I right in saying 10k RPM is about the upper limit for spinning disks?

discuss

louwrentius|4 years ago

There are also 15,000 RPM drives but they were exclusive to the server market. They were small and extremely loud.

Their IOPs and latency was even better.

Funny:

https://www.servethehome.com/seagate-launches-final-15k-rpm-...

cerved|4 years ago

"In summary, 15K RPM hard drives are less dense, use more power and have performance somewhere between 1/4th and 1/300th of a SSD."

bombcar|4 years ago

20,000 RPM disks were trialed but I don’t know if they ever saw production. Part of the problem is keeping the platters together at those speeds; and about that time SSDs took over.

pengaru|4 years ago

20k rpm is relatively clunky F1 combustion engine territory.

I find it hard to believe spinning an electric motor and a relatively light and small disc that fast is much of a challenge to keep together, especially in such a coddled environment.

Even back in the early 90s my RC10 had a 38k rpm "modified" motor; the Motown Missile. That thing lived through hell...

Trigg3r|4 years ago

Yeah that's what I thought, similar to CD's couldn't spin much faster without shattering iirc, rather than being a head read speed issue

RedShift1|4 years ago

Servers used to have 15k RPM drives but that segment has diminished in favor of SSDs.

cricalix|4 years ago

15k RPM drives existed too. Seagate Cheetah for instance.

mattowen_uk|4 years ago

Not as SATA or IDE? The Cheetah is SAS/SCSI I think. I have (somewhere) a 15k RPM 143GB SCSI drive which I used in a home built Windows Server machine for a while. At the time, I had never seen Windows boot that fast. Ahhh.. simpler times.

cerved|4 years ago

No. There's a tradeoff. Faster drives means more power, more heat, more vibrations, more noise, less durability. Spinning disk is mainly about price per byte at good performance - there's simply no market.

myrandomcomment|4 years ago

100%. This is why when I ordered my home NAS I pick 5400RPM NAS drives (FreeNAS Mini). The WD Red drives in my current system have been spinning since 2014, 4x4TB in a mirrored stripped set for a whopping 8TB of space + 2x120GB Evo write caches (mirrored).

The key to speed is having lots of drives, RAM and SSD write cache.

I plan on getting the new TrueNAS Mini XL this year with 8x14TB.

agumonkey|4 years ago

And if people remember Bryan Cantrill datacenter vibration video, it quickly becomes problematic.