How to determine disc spindown time

I am able to set both APM and spindown times using the command:

hdparm -S 246 -B 128 /dev/sda

Unfortunately I can only find the APM value in the information output:

hdparm -I /dev/sda | grep Advanced

How can I see the spindown time value? I suspect my disc it is ignoring my value. I would like to see it. Tried smartctl but with no luck, help.

Update: It turned out tuned is very aggressive. When I turned it down, my discs does not spin down. It was setting something there.

Solution 1:

There does not seem to be a way to query that value with hdparm, however you can see if the drive is in a standby or active state...

> sudo hdparm -C /dev/sdb

/dev/sdb:
 drive state is:  standby

> sudo hdparm -C /dev/sda

/dev/sda:
 drive state is:  active/idle

Solution 2:

The option -B 128 inhibits spindown, so your -S option is useless. Have a look at man hdparm. Spindown is only possible with -B parameters of 127 and less.