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固态硬盘寿命有多少?ssd固态硬盘能用多长时间?

更新时间:2026-08-23 11:52:25 | 编辑:基神 | 信息来源:互联网
固态硬盘因为其速度快,逐渐成为了现在电脑硬盘的主流,不过对于很多朋友关心的一点就是固态硬盘的寿命有多少,可以用多长时间。



固态硬盘的寿命,是由闪存类型和写入的数据量决定的。

1、一般的MLC固态硬盘,最广泛了,与入量是3000次P/E,也就是累计写满3000次。假设一只128G的固态硬盘,每天平均写入40G(一般的家庭用户不可能做到),那也能使用20年以上。

2、TLC的寿命,是MLC的一半或三分之一。也就是上述寿命缩短三倍。

3、SLC的寿命,是10000次p/e,是MLC的三倍以上。

现在主流SSD的P\E次数是3000次,如果你预算1000那么128G可以买到5000P\E的好盘,也就是说,可以写入128*5000=640000G的数据,假设每天大量写入50G,平均写入放大率为2,也就是每天写入量100G,那么使用寿命就是640000/100*365=17.534年,你还得算算平均每天能不能写到50G这个量,所以完全不必担心闪存寿命,所以通常是电脑比SSD先挂,主控比闪存先挂。另外得吐槽一下,那个哥们儿居然说“注意是 读写”,头一次听说读也能损耗闪存寿命的,SLC还牌子无所谓。

什么是P/E次数?


固态硬盘是按重复擦写次数来计算的。闪存完全擦写一次叫做1次P/E,因此闪存的寿命就以P/E作单位。一款120G的固态硬盘,要写入120G的文件才算做一次P/E。

一般来说普通用户都不必为固态硬盘的寿命担心,因为一般固态硬盘没挂,你的电脑就先挂了,闪存没挂,主控就先挂了~

要知道,即便是大家最不放心的TLC闪存三星840,也毫无任何问题地写入了300TB,而且直到超过700TB才写死一个,还不是840。

840 Pro最终达到了2400TB,也就是2.4PB,这是惊人的,很多企业级固态硬盘都不会标称这么多的终身写入量。如果一位用户每天写入1TB,那也要六年半之后才能搞死它。




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