System Administration Guide, Volume I

Examples--Partition Tables

The following partition table example is displayed from a 535-Mbyte disk using the format utility:

The partition table contains the following information:

Column Name	Description
`Part`	Partition (or slice number). See Table 21-7 for a description of this column.
`Tag`	Partition tag. See Table 21-7 for a description of this column.
`Flags`	Partition flag. See Table 21-7 for a description of this column.
`Cylinders`	The starting and ending cylinder number for the slice.
`Size`	The slice size in Mbytes.
`Blocks`	The total number of cylinders and the total number of sectors per slice in the far right column.

The following example displays a disk label using the prtvtoc command.

# prtvtoc /dev/rdsk/c0t3d0s0
* /dev/rdsk/c0t3d0s0 partition map
*
* Dimensions:
*     512 bytes/sector
*      80 sectors/track
*       9 tracks/cylinder
*     720 sectors/cylinder
*    2500 cylinders
*    1151 accessible cylinders
*
* Flags:
*   1: unmountable
*  10: read-only
*
*                     First   Sector   Last
* Partition Tag Flags Sector  Count   Sector  Mount Directory
       0     2   00        0   66240   66239   /
       1     3   01    66240  131760  197999
       2     5   00        0  828720  828719
       3     0   00   198000   66240  264239   /export
       4     0   00   264240   66240  330479   /export/swap
       5     0   00   330480   72000  402479   /opt
       6     4   00   402480  385200  787679   /usr
       7     8   00   787680   41040  828719   /export/home
#

The disk label includes the following information:

Dimensions - This section describes the physical dimensions of the disk drive.

Flags - This section describes the flags listed in the partition table section. See Table 21-7 for a description of partition flags.

Partition (or Slice) Table - This section contains the following information:

Column Name	Description
`Partion`	Partition (or slice number). See Table 21-7 for a description of this column.
`Tag`	Partition tag. See Table 21-7 for a description of this column.
`Flags`	Partition flag. See Table 21-7 for a description of this column.
First Sector	The first sector of the slice.
Sector Count	The total number of sectors in the slice.
`Last Sector`	The last sector number in the slice.
`Mount Directory`	The last mount point directory for the file system.