/usr/sbin/devinfo -i device
/usr/sbin/devinfo -p device
The devinfo command is used to print device specific information about disk devices on standard out. The command can only be used by the superuser.
Prints the following device information:
Software version (not supported and prints as 0)
Drive id number (not supported and prints as 0)
Device blocks per cylinder
Device bytes per block
Number of device partitions with a block size greater than zero
Prints the following device partition information:
Device major and minor numbers (in hexadecimal)
Partition start block
Number of blocks allocated to the partition
This command is used by various other commands to obtain device specific information for the making of file systems and determining partition information. If the device cannot be opened, an error message is reported.
See attributes(5) for descriptions of the following attributes: