如何计算硬盘的容量?
我有一个如何计算硬盘容量的有效示例,有人可以解释一下BOLD数字是从哪里来的吗?
RPM:7200
扇区数量:400
盘片数量:6
磁头数量:12 个
柱面:17000
平均寻道时间:10 毫秒
在调整柱面之间移动的时间:1 毫秒
给我的答案的第一行是:
12 x 17 x 4 x 512 x 10^5
我只想知道粗体部分来自哪里。512我不知道。 10 来自寻道时间,但它的幂 5?
I have a worked example of how to compute the capacity of a hard disk, could anyone explain where the BOLD figures came out of?
RPM: 7200
no of sectors: 400
no of platters: 6
no of heads: 12
cylinders: 17000
avg seek time: 10millisecs
time to move between adj cylinders: 1millisec
the first line of the answer given to me is:
12 x 17 x 4 x 512 x 10^5
I just want to know where the parts in bold came from.The 512 I dont know. The 10 is from the seek time but its power 5?
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答案是
,这
您想要的容量相同
与
,因此您不需要此处的任何时间。
512 字节的参考可以在 Wikipedia 中找到,例如(并且它还有一个类似的示例,其公式如下)。
The answer is
so this is
which is the same as
and
As you want the capacity, you don't need any times here.
A reference for the 512 bytes can be found at Wikipedia, for example (and it also has a similar example with the same formula a bit below).