所属类别：linux

摘要内容：1.fdisk -l Disk /dev/sda: 120.0 GB, 120034123776 bytes =硬盘容量120G 255 heads, 63 sectors/track, 14593 cylinders =255个磁头，63个扇区，14593个柱面 Units = cylinders of 16065 * 512 = 8225280 bytes =每个柱面的容量是 8225280 =存储容量＝磁道（柱面）数　(详细内容)

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1.fdisk -lDisk /dev/sda: 120.0 GB, 120034123776 bytes =>硬盘容量120G255 heads, 63 sectors/track, 14593 cylinders =>255个磁头，63个扇区，14593个柱面Units = cylinders of 16065 * 512 = 8225280 bytes =>每个柱面的容量是 8225280=>存储容量＝磁道（柱面）数×磁头数×每道扇区数×每扇区字节数14593×255×63×512＝111.788G柱面容量＝磁头数×每道扇区数×每扇区字节数 255×63×512=8225280 B实际上硬盘厂家通常是按照1G＝1000计算的Disk identifier: 0xc3ffc3ffDevice Boot Start End Blocks Id System =>start 表示的一个分区从X cylinder开始/dev/sda1 * 1 3824 30716248+ 7 HPFS/NTFS/dev/sda2 3825 10199 51200000 7 HPFS/NTFS/dev/sda3 10200 12596 19253902+ 5 Extended/dev/sda4 12597 14593 16040902+ 12 Compaq diagnostics/dev/sda5 10200 10211 96358+ 83 Linux/dev/sda6 10212 10454 1951866 82 Linux swap / Solaris/dev/sda7 10455 11548 8787523+ 83 Linux/dev/sda8 11549 12596 8418028+ 83 Linux2.df:通过这个命令可以查看磁盘的使用情况以及文件系统被挂载的位置Filesystem 1K-blocks Used Available Use% Mounted on/dev/sda7 8649544 1986948 6223220 25% /tmpfs 1033648 0 1033648 0% /lib/init/rwudev 10240 136 10104 2% /devtmpfs 1033648 0 1033648 0% /dev/shm/dev/sda5 93307 19997 68493 23% /boot（责任编辑：A6）

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