扇區(sector)，塊(block)，簇(cluster)

1.硬盤(能夠認爲硬盤就是磁盤) # fdisk -l Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes 255 heads, 63 sectors/track, 17844 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes 能夠看到幾個名詞：heads/sectors/cyli

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