The German-language forum that the article mentions has been doing some great detective work: https://www.hardwareluxx.de/community/threads/crystaldiskinf... The conclusion on page 4 of the above thread: > Non-Pro RED = 5400rpm according to data sheet > Pro Red = 7200rpm according to data sheet > Internal both 7200rpm and 120Hz. > Apparently all WD / HGST helium plates have real 7200rpm, no matter what it says. Simpl…
Western Digital is trying to redefine the word “RPM”
31–40 of 140 posts
Re: Western Digital is trying to redefine the word “RPM”
#32After all this news of false advertisement and lower quality drives from WD, I'm glad I bought Seagate drives, even if only because Amazon had a big fat discount on Barracudas the day I was shopping for some spinning rust.
The only way to get good hard drives these days is to buy from the enterprise lines e.g. WD Gold or Seagate Exos. They're extremely expensive, but this is the only way to get the kind of quality that used to be standard a few years ago.
Re: Western Digital is trying to redefine the word “RPM”
#33Earlier quoted context omitted.
> What a world when you can't even trust the spec sheet. What's next, 10 watt class drives that pull 20 watts? 3-year class warranties? Just like how internet speeds are advertised ("Up to 300 Mb/s").
There's a solid technical reason for that though, as ISPs have no control over the performance of your connection's remote part. Sure, it leaves plenty of room for abuse, but this is a necessary disclaimer, not some slippery marketing.
Re: Western Digital is trying to redefine the word “RPM”
#34This sort of misrepresentation should be outright illegal. Why does it feel like big corporations are just getting more blatantly evil these days?
This is already what they did with "KB/MB/GB/TB." Evil, but not any more blatant.
The 'confusion' as to whether the "K" prefix meant a factor of 10^3 or 2^10 goes back decades.
In 1961 a book says "it is more usual to express the speed in bits or kilobits (1,000 bits) per second"; an IBM 1410 manual says ""The 40K core array requires 40,000 valid five-position addresses from 0,000 to 39,999." In 1962 an ACM paper referred to a "4K IBM 1401" which had 4000 characters of storage, but in 1964 Amdahl wrote a paper that had 1K meaning 1024. Academics went back and forth a bit it seems.
* https://en.wikipedia.org/wiki/Timeline_of_binary_prefixes
For hard drives specifically, a 1974 example has Mbytes in the 10^6 sense. Further examples often have drives using the base-10 sense of the prefix (including the first 5 ¼ inch floppy), while memory chips using the base-2 sense of the prefix.
The powers-of-1024 nomenclature of kibi/mebi/etc was introduced in 1995, with IEEE mandating SI prefixes only be used for powers-of-1000 in 1997. The IEC follows suit a couple of years later.
Re: Western Digital is trying to redefine the word “RPM”
#35The German-language forum that the article mentions has been doing some great detective work: https://www.hardwareluxx.de/community/threads/crystaldiskinf... The conclusion on page 4 of the above thread: > Non-Pro RED = 5400rpm according to data sheet > Pro Red = 7200rpm according to data sheet > Internal both 7200rpm and 120Hz. > Apparently all WD / HGST helium plates have real 7200rpm, no matter what it says. Simpl…
Re: Western Digital is trying to redefine the word “RPM”
#36This sort of misrepresentation should be outright illegal. Why does it feel like big corporations are just getting more blatantly evil these days?
This is already what they did with "KB/MB/GB/TB." Evil, but not any more blatant.
None of those mitigating/confounding factors apply to RPM, so the current lies are more blatant.
(Though it does seem somewhat relevant to point out here that a "500GB" drive usually has an accessible capacity of 500,107,862,016 bytes, implying an effective definition of 1GB=1,000,215,724 bytes, which is neither 1024^3 bytes nor 10^9, nor 10^9 rounded up to the nearest whole (binary-sized) sector. And that effective GB definition varies with drive capacity.)
Re: Western Digital is trying to redefine the word “RPM”
#37After all this news of false advertisement and lower quality drives from WD, I'm glad I bought Seagate drives, even if only because Amazon had a big fat discount on Barracudas the day I was shopping for some spinning rust.
Seagate mea culpa'd afterwards, but they still tried to pull the same crap with SMR until they were caught. There's an order or two of magnitude less data and benchmarks on the Toshiba drives, but I just bought Toshiba 6x6TBs for a NAS build because I couldn't stomach buying WD or Seagate (or HGST which is just WD now). EDIT: Forgot to say, the drives have been great. It's only been 6 months or so, but they've been p…
https://blocksandfiles.com/2020/04/16/toshiba-desktop-disk-d...
Re: Western Digital is trying to redefine the word “RPM”
#38Earlier quoted context omitted.
There's a solid technical reason for that though, as ISPs have no control over the performance of your connection's remote part. Sure, it leaves plenty of room for abuse, but this is a necessary disclaimer, not some slippery marketing.
It also includes the fact that their network may be oversubscribed.
If anyone wants to have an unfettered pipe then call up a Tier 1/2/3 ISP and ask for a commercial connection via a single-mode fibre, and be ready to pay quite a bit for it.
Re: Western Digital is trying to redefine the word “RPM”
#39The German-language forum that the article mentions has been doing some great detective work: https://www.hardwareluxx.de/community/threads/crystaldiskinf... The conclusion on page 4 of the above thread: > Non-Pro RED = 5400rpm according to data sheet > Pro Red = 7200rpm according to data sheet > Internal both 7200rpm and 120Hz. > Apparently all WD / HGST helium plates have real 7200rpm, no matter what it says. Simpl…
60 watt equivalent light bulb
Re: Western Digital is trying to redefine the word “RPM”
#40Earlier quoted context omitted.
> What a world when you can't even trust the spec sheet. What's next, 10 watt class drives that pull 20 watts? 3-year class warranties? Just like how internet speeds are advertised ("Up to 300 Mb/s").
There's a solid technical reason for that though, as ISPs have no control over the performance of your connection's remote part. Sure, it leaves plenty of room for abuse, but this is a necessary disclaimer, not some slippery marketing.