FYI,这里有一篇很详细的文章 http://www.ibm.com/developerworks/cn/linux/l-lpic1-v3-102-1/

2010/5/19 patapon <l...@lavabit.com>:
> 应该是,谢谢。
>
> On 三, 2010-05-19 at 17:43 +0800, wenya li wrote:
>> 看起来像是每个柱面的容量。我这样理解的,不知道对不对。
>>
>> 255 heads, 63 sectors/track, 38913 cylinders
>> 磁头数 255(盘面数), 每个磁道扇区数63,共38913个柱面(每个盘片38913个磁道)
>>
>> Units = cylinders of 16065 * 512 = 8225280 bytes
>> 16065 = 255 × 63  为每个柱面的扇区数
>> 8225280 = 16065*512 为每个柱面的容量(每个扇区512bytes)
>>
>> Thanks Muchly
>>
>>
>> 2010/5/19 Patapon <l...@lavabit.com>
>>
>> > 下面是我的U盘使用fdisk程序的部分显示内容,其中Units一行的含义我搞不懂,有谁知道吗?
>> > Command (m for help): p
>> >
>> > Disk /dev/sdb: 505 MB, 505413632 bytes
>> > 16 heads, 61 sectors/track, 1011 cylinders
>> > Units = cylinders of 976 * 512 = 499712 bytes
>> > Sector size (logical/physical): 512 bytes / 512 bytes
>> > I/O size (minimum/optimal): 512 bytes / 512 bytes
>> > Disk identifier: 0xf3b17382
>> >
>> > 下面是我的硬盘/dev/sda的部分显示内容
>> > Disk /dev/sda: 320.1 GB, 320072933376 bytes
>> > 255 heads, 63 sectors/track, 38913 cylinders
>> > Units = cylinders of 16065 * 512 = 8225280 bytes
>> > Sector size (logical/physical): 512 bytes / 512 bytes
>> > I/O size (minimum/optimal): 512 bytes / 512 bytes
>> > Disk identifier: 0xa1ec4602
>> >
>> >
>> > --
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