逻辑磁盘和物理磁盘有什么区别？ [英] What is the difference between Logical Disk and Physical Disk?

问题描述

嗨。

当我执行性能监视器时，我获得了Logical Disk Avg。磁盘秒/写计数器和  物理磁盘平均值磁盘秒/写计数器。

但我可以看到不同的平均值。价值和最大价值。 

即使逻辑和物理磁盘是一对一的映射。

为什么我得到结果？

另一方面，我得到了与Logical Disk Avg相同的结果。磁盘秒/读取计数器和  物理磁盘平均值Disk sec / Read counter's Avg。价值和最大值。

解决方案

物理磁盘是指实际的物理硬盘（或硬件和RAID设置中的阵列），而逻辑磁盘是指已在该磁盘上创建的卷。

因此，如果您有一个磁盘上创建了一个卷，那么值可能是1比1，但是如果磁盘上有多个卷，例如在其上运行C：\和D：\卷的物理磁盘，然后逻辑磁盘与c：\和d：\
相关，而不是它们正在运行的磁盘。

参见
http://blogs.technet.com/b/askcore/archive/2012/03/16/windows-performance-monitor-disk-counters-explained.aspx 以获得更深入的解释

Hi.

When I do Performance Monitor, I got Logical Disk Avg. Disk sec/Write counter and  Physical Disk Avg. Disk sec/Write counter.

But I can see the different Avg. value and Max. value. 

Even if Logical and Physical Disk are one-to-one mapping.

Why did i get the result?

One the other hands, I got a same result that Logical Disk Avg. Disk sec/Read counter and  Physical Disk Avg. Disk sec/Read counter's Avg. value and Max. value.

解决方案

Physical Disk refers to an actual physical HDD (or array in a hardware RAID setup), whereas Logical Disk refers to a Volume that has been created on that disk.

So if you have one disk with one volume created on it then the values are likely to be 1 to 1, but if you have multiple volumes on the disk, for instance a physical disk with C:\ and D:\ volumes running on it, then the logical disks relate to c:\ and d:\ rather than the disk they're running on.

See http://blogs.technet.com/b/askcore/archive/2012/03/16/windows-performance-monitor-disk-counters-explained.aspx for a more in depth explanation.

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