固態硬盤可靠性

Your computer has a massive hard drive that you significantly underuse. Would decreasing the size of the primary partition actually increase the lifespan of the drive?

您的計算機具有大量未充分使用的巨大硬盤驅動器。 減小主分區的大小是否會真正增加驅動器的使用壽命？

Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites.

今天的“問答”環節由SuperUser提供，它是Stack Exchange的一個分支，該社區是由社區驅動的Q＆A網站分組。

問題 (The Question)

SuperUser reader Chazjn is curious if underusing his drivespace will actually increase the longevity of the drive:

超級用戶讀者Chazjn好奇是否未充分利用驅動器空間會延長驅動器的使用壽命：

I have a used 3TB SATA hard drive kicking around that I am planning to use as a replacement in a Win 7 box.

我有一個用過的3TB SATA硬盤驅動器，打算將其用作Win 7盒中的替代品。

I don’t need all this capacity so was I thinking if I format it to 1TB I would increase the reliability. My thinking behind this is based on the following thoughts:

我不需要所有這些容量，所以我在想如果將其格式化為1TB，則會提高可靠性。 我對此的想法基于以下思想：

• There would be more physical ‘breathing space’ between each sector/track.
  每個扇區/軌道之間將有更多的物理“呼吸空間”。
• When bad sectors are found, there be a larger pool of unallocated sectors to bring into use.
  當發現壞扇區時，會有大量未分配扇區可供使用。

Are my assumptions true?

我的假設是真的嗎？

If my assumptions are not true then what happens to all the unused space? Does the hard drive still format to the same physical dimensions; thus would my 1TB drive still be squeezing sectors onto the platter as if it were formatted to 3TB.

如果我的假設不正確，那么所有未使用的空間將如何處理？ 硬盤驅動器是否仍格式化為相同的物理尺寸； 因此，我的1TB驅動器仍會像將其格式化為3TB一樣將扇區壓縮到磁盤上。

Many thanks!

非常感謝！

So what’s the story? Does his theory about using less of the disk hold up?

那是什么故事？ 他關于減少磁盤使用量的理論是否成立？

答案 (The Answer)

SuperUser contributor Mokubai steps in and shoots the theory down:

超級用戶貢獻者Mokubai介入并將理論付諸實踐：

Your assumptions are wrong.

您的假設是錯誤的。

The drive has a?fixed?physical format that is made up of physical sectors, in your case totalling 3TB. By formatting the drive you are effectively clearing the data in those sectors but you are not rearranging them or changing their physical size or layout in any way whatsoever. By formatting at a lower capacity you would simply be wasting the extra space, it would exist but would simply not be being used foranything at all.

該驅動器具有由物理扇區組成的固定物理格式，在您的情況下總計為3TB。 通過格式化驅動器，您可以有效地清除這些扇區中的數據，但不會以任何方式重新排列它們或更改其物理大小或布局。 通過以較低的容量進行格式化，您只會浪費掉多余的空間，它會存在，但根本不會被用于任何東西。

Formatting does not change the physical sector size nor space between tracks.

格式化不會更改物理扇區大小，也不會更改軌道之間的空間。

As to unallocated sectors, I believe that drives have a preset number of reserved sectors for reallocation and the drive has no way of telling whether sectors are used by the operating system. SSDs do have a feature called “trim” that can tell the drive the sectors are clear to be wiped but this is something slightly different, spinning platters lack any kind of similar feature. Un-formatted sectors would not be used for bad sector reallocation.

對于未分配的扇區，我認為驅動器具有用于重新分配的預設數量的保留扇區，并且該驅動器無法告知操作系統是否使用了扇區。 SSD確實具有一項稱為“修剪”的功能，該功能可以告訴驅動器清除的扇區顯然是擦除的，但這有點不同，旋轉盤片缺少任何類似的功能。 未格式化的扇區將不會用于壞扇區的重新分配。

By formatting a 3TB drive as 1TB you are simply preventing yourself from using 2TB of space and thus wasting 2/3rds of what you spent on the drive. Your 1TB partition would be sitting in front of 2TB of empty space.

通過將3TB驅動器格式化為1TB，您只是在防止自己使用2TB的空間，從而浪費了您在驅動器上花費的2 / 3rds。 您的1TB分區將位于2TB的空白空間前面。

While formatting/partitioning won’t extend the life of your drive, you can still leverage partitioning to your advantage by creating a partition for your operating system/applications and another for your data. In case of operating system problems or a total operating system reinstall, your data is safely stored on a separate area of the drive.

盡管格式化/分區不會延長驅動器的使用壽命，但是您仍然可以通過為操作系統/應用程序創建一個分區，為數據創建一個分區來充分利用分區優勢。 如果出現操作系統問題或重新安裝整個操作系統，則數據將安全地存儲在驅動器的單獨區域中。

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Have something to add to the explanation? Sound off in the the comments. Want to read more answers from other tech-savvy Stack Exchange users??Check out the full discussion thread here.

有什么補充說明嗎？ 在評論中聽起來不對。 是否想從其他精通Stack Exchange的用戶那里獲得更多答案？ 在此處查看完整的討論線程。

翻譯自: https://www.howtogeek.com/166810/can-you-increase-the-reliability-of-a-hard-drive-by-using-less-of-its-total-capacity/

固態硬盤可靠性

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