Your computer can tell you the temperature of the hard drive to the degree, but how exactly does it perform such a trick? Read on as we dig into the hardware and software elements of system monitoring.

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问题

超级用户读者Royi Namir需要解决与同事的纠纷：

I had an argument with a colleague about :

“How do software programs (i.e. hwmonitor) determine the temperature of the hard drive?”

I said that there must be a thermometer inside the HDD and the data (via SMART) is passed as regular info to the soft which wants that info .

He said : “No. There is no thermometer inside the HDD. You have to plug it as another hardware on your HDD. All the software uses statistics about heat from the RPM info”

So, how do software programs like hwmonitor, determine the temperature of the HDD?

怎么会呢？让我们深入了解这场友好的争论的真相。

答案

超级用户贡献者雷南支持罗伊的评估：

The hard drive has a temperature sensor (or multiple temperature sensors – they might be used for internal control, self-test etc…) inside, and this data is passed through SMART (in fact, this is a standardized SMART parameter).

如果您对智能系统和它能够报告的所有内容感到好奇，我们强烈建议您查看上面的链接。你会发现从温度到自旋时间到误差以及介于两者之间的一切都是可变的。

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