how to show hard disk status

[coopci]

How to show hard disk status such as whether it is spun down. In addition is there any command line tool to spin down a specific hard disk?

 

[aragon]

There is camcontrol(8) if you're running ahci(4), but I don't know how to use it to query the power state of a drive. It lets you spin a drive down and set an auto spin down timeout.

 

[Beastie]

atacontrol(8) (see the spindown command and the examples section).