solaris linux 計算磁盤容量 cyl alt sec

--solaris format指令檢視磁盤

# format

Searching for disks...done

       4. c4t600000E00D1100000011098C000A0000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 62309 alt 2 hd 255 sec 189>

          /scsi_vhci/[email protected]

       5. c4t600000E00D1100000011098C000B0000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 62309 alt 2 hd 255 sec 189>

          /scsi_vhci/[email protected]

       6. c4t600000E00D1100000011098C000C0000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 62309 alt 2 hd 255 sec 189>

          /scsi_vhci/[email protected]

       9. c4t600000E00D1100000011098C000F0000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 62309 alt 2 hd 255 sec 189>

          /scsi_vhci/[email protected]

      10. c4t600000E00D1100000011098C00000000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 638 alt 2 hd 64 sec 256>

          /scsi_vhci/[email protected]

      11. c4t600000E00D1100000011098C00010000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 638 alt 2 hd 64 sec 256>

          /scsi_vhci/[email protected]

      12. c4t600000E00D1100000011098C00020000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 25470 alt 2 hd 64 sec 256>

          /scsi_vhci/[email protected]

      13. c4t600000E00D1100000011098C00030000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 25470 alt 2 hd 64 sec 256>

          /scsi_vhci/[email protected]

      14. c4t600000E00D1100000011098C00040000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 62309 alt 2 hd 255 sec 189>

          /scsi_vhci/[email protected]

      15. c4t600000E00D1100000011098C00050000d0 <FUJITSU-ETERNUS_DXL-0000 cyl 62309 alt 2 hd 255 sec 189>

          /scsi_vhci/[email protected]

cyl cylinders 柱面

hd  heads     硬碟面

sec sector    扇區

計算公式

磁面個數 x 扇區個數 x 每個扇區的大小512 x 柱面個數 = 硬碟體積 (機關bytes)

本例中

10号磁盤：

hd * sec * 512 * cyl = 64*256*512*638 = 5G

--linux

[[email protected] ~]# fdisk -l

Disk /dev/sda: 292.5 GB, 292527538176 bytes

255 heads, 63 sectors/track, 35564 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

同理