The WD Red ‘5400 RPM Class’ NAS hard drives actually spin at 7,200rpm.

WD Red“ 5400 RPM類” NAS硬盤(pán)實(shí)際上以7,200rpm的轉(zhuǎn)速旋轉(zhuǎn)。

By Matthew Humphries

由 馬修·漢弗萊斯

One of the key specifications present on any hard drive is how fast it spins, with 5,400rpm and 7,200rpm being the two most well-known spinning speeds. However, Western Digital is muddying the waters by classifying some of its 7,200rpm drives as “5400 RPM Class.” Confused? You’re not the only one.

任何硬盤(pán)驅(qū)動(dòng)器上存在的關(guān)鍵規(guī)格之一是其旋轉(zhuǎn)速度，其中最著名的兩個(gè)旋轉(zhuǎn)速度是5400rpm和7200rpm。 但是，西部數(shù)據(jù)(Western Digital)通過(guò)將其7,200rpm驅(qū)動(dòng)器中的某些驅(qū)動(dòng)器歸類為“ 5400 RPM類”，使情況更加混亂。 困惑？ 你并不是唯一的一個(gè)。

As Ars Technica reports, Western Digital marks some of its WD Red Network Attached Storage hard drives as having a Performance Class of “5400 RPM Class,” which suggests these drives spin at 5,400rpm. Even the firmware on the drives reports 5400 RPM, but spectral analysis carried out by Reddit user Amaroko has confirmed these drives are actually spinning at 7,200rpm.

正如Ars Technica報(bào)道的那樣 ，Western Digital將其某些WD Red Network Attached Storage硬盤(pán)驅(qū)動(dòng)器的性能等級(jí)標(biāo)記為“ 5400 RPM等級(jí)”，這表明這些驅(qū)動(dòng)器的轉(zhuǎn)速為5400 rpm。 甚至驅(qū)動(dòng)器上的固件報(bào)告的轉(zhuǎn)速為5400 RPM，但是Reddit用戶Amaroko進(jìn)行的頻譜分析已確認(rèn)這些驅(qū)動(dòng)器實(shí)際上以7200 rpm的轉(zhuǎn)速旋轉(zhuǎn)。

Although many consumers may be happy to find the hard drive they thought spun at 5,400rpm actually spins much faster, meaning higher performance, there are other consequences. Faster spin speed means more power is used by these drives and just as importantly, they emit more noise. In a NAS setup, which is what these drives are marketed as being for, both power use and noise levels are important, and arguably more so than performance.

盡管許多消費(fèi)者可能會(huì)發(fā)現(xiàn)他們認(rèn)為以5400 rpm轉(zhuǎn)速旋轉(zhuǎn)的硬盤(pán)實(shí)際上旋轉(zhuǎn)得更快，這意味著更高的性能，但還有其他后果。 更快的旋轉(zhuǎn)速度意味著這些驅(qū)動(dòng)器會(huì)使用更多的功率，同樣重要的是，它們會(huì)發(fā)出更多的噪音。 在NAS設(shè)置 (這是這些驅(qū)動(dòng)器的市場(chǎng)定位)中，功耗和噪聲水平都很重要，而且可以說(shuō)比性能更重要。

The use of “5400 RPM Class” therefore seems misleading, and Western Digital’s official response to the discovery does little to clarify the situation. A representative responded to Ars Technica’s enquiry with the following statement:

因此，“ 5400 RPM等級(jí)”的使用似乎具有誤導(dǎo)性，并且Western Digital對(duì)這一發(fā)現(xiàn)的官方回應(yīng)并不能澄清這種情況。 一位代表回應(yīng)了Ars Technica的詢問(wèn)，內(nèi)容如下：

“For select products, Western Digital has published RPM speed within a “class” or “performance class” for numerous years rather than publishing specific spindle speeds. We also fine-tune select hard drive platforms and the related HDD characteristics to create several different variations of such platforms to meet different market or application needs. By doing so, we are able to leverage our economies of scale and pass along those savings to our customers. As with every Western Digital product, our product details, which include power, acoustics and performance (data transfer rate), are tested to meet the specifications provided on the product’s data sheet and marketing collateral.”

“對(duì)于某些產(chǎn)品，Western Digital已經(jīng)在“等級(jí)”或“性能等級(jí)”內(nèi)發(fā)布了RPM速度多年，而不是發(fā)布特定的主軸速度。 我們還將微調(diào)選定的硬盤(pán)驅(qū)動(dòng)器平臺(tái)和相關(guān)的HDD特性，以創(chuàng)建此類平臺(tái)的幾種不同版本，以滿足不同的市場(chǎng)或應(yīng)用程序需求。 通過(guò)這樣做，我們能夠利用規(guī)模經(jīng)濟(jì)并將節(jié)省下來(lái)的費(fèi)用轉(zhuǎn)嫁給我們的客戶。 與所有Western Digital產(chǎn)品一樣，我們對(duì)產(chǎn)品的詳細(xì)信息(包括功率，聲學(xué)和性能(數(shù)據(jù)傳輸速率))進(jìn)行了測(cè)試，以滿足產(chǎn)品數(shù)據(jù)表和市場(chǎng)營(yíng)銷資料上提供的規(guī)范。”

It seems Western Digital could easily clear up any confusion by simply making the spindle speed clear as part of each drive’s listed specification. But for now, just be aware that the number you think represents spindle speed on Western Digital hard drives might simply be a performance class instead and not representative.

看起來(lái)Western Digital可以通過(guò)簡(jiǎn)單地將主軸速度作為每個(gè)驅(qū)動(dòng)器列出的規(guī)格的一部分來(lái)明確消除任何混亂。 但就目前而言，請(qǐng)注意，您認(rèn)為代表Western Digital硬盤(pán)驅(qū)動(dòng)器上的主軸速度的數(shù)字可能只是性能等級(jí)，而不是代表性能。

Originally published at https://www.pcmag.com.

最初發(fā)布在 https://www.pcmag.com 。

翻譯自: https://medium.com/pcmag-access/western-digital-confuses-everyone-with-5400-rpm-class-hard-drives-50d5a154936d

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