影子系统伤硬盘吗?影子系统对电脑的影响有哪些?

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  想要备份并还原Windows操作系统并非只有一键还原工具才能做到,若是按照简便又效率的还原方案,非影子系统莫属,TA可以在用户开机的时候快速回到曾经的某个时间段,说是后悔药也不为过。这么快的效率影子系统伤硬盘吗?这个问题很多网友都会疑惑,笔者就此对影子系统做了一个测试。

  影子系统伤硬盘吗?笔者是如何测试的?

  相信有不少人过去已经了解过影子系统在机械硬盘上的使用,它的原理是通过将新写入的数据重定向到硬盘其他位置来实现开机后所做任何更改都不会生效,没有还原步骤,重新开机后一切都还是原来的样子。不过影子系统是否适合在固态硬盘上使用呢?下面就让我们通过测试来说明。

  测试使用东芝原厂Q300Pro 256G固态硬盘:

  测试用影子系统 PowerShadow ,安装后有单一 (只保护C盘) 和完全 (保护全部硬盘分区) 两种影子模式。

  东芝Q300 Pro固态硬盘上安装了Win10操作系统,在开启影子模式之前,首先使用AS SSD Benchmark进行简单的性能测试:

  Anvil's Storage Utilities 测试:

  然后我们重启开启影子模式,将系统置于保护模式下,再次进行性能测试,看影子系统对固态硬盘性能是否有影响:

  AS SSD Benchmark 测试表明开启影子系统后性能完全无衰减,Anvil's Storage Utilities 测试成绩也仅有非常微弱的降低,基本是在测试误差范围以内:

  固态硬盘和机械硬盘的一个重要区别就是固态硬盘需要Trim的支持来提高GC垃圾回收的效率,不过经过我们的测试,在开启影子系统之后,东芝Q300 Pro 256G的Trim功能就不能正常工作了:

  4、同时,影子系统不同于RAMOS,他并不能直接减少硬盘的写入量,实际上写入的数据还是会进入固态硬盘,只不过在重启后就会自动消失。在使用中固态硬盘的写入量还是和开启影子系统之前一样会正常的增加:

  通过以上测试我们可以知道,影子系统这个软件能够在东芝Q300Pro固态硬盘上正常使用,对硬盘所做的更改在关机后都不会得到保留,实现防止误操作删除重要文件、抵御病毒感染和人为破坏的目的。虽然影子系统下不能支持Trim指令,对固态硬盘的使用寿命会有一些不利的影响,但Q300Pro的东芝15nm MLC原厂闪存与长达5年质保,可以给大家一个安心的保障。

  实验证明,影子系统对操作系统的伤害微乎其微,相对于TA强大的功能而言,可以忽略不计。

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