$ su root -c 'prtvtoc /dev/dsk/c1t1d0s0'
Password: 
* /dev/dsk/c1t1d0s0 partition map
*
* Dimensions:
*     512 bytes/sector
*      63 sectors/track
*     255 tracks/cylinder
*   16065 sectors/cylinder
*   38912 cylinders
*   38910 accessible cylinders
*
* Flags:
*   1: unmountable
*  10: read-only
*
*                          First     Sector    Last
* Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
       0      2    00      16065  40965750  40981814
       1      3    01   40981815  33559785  74541599
       2      5    01          0 625089150 625089149
       3      0    00   74541600  20482875  95024474
       7      0    00   95024475 530064675 625089149
       8      1    01          0     16065     16064