SOLVED (Scale) command to view if disk is spun down

[peterge]

Scale command to view if disk is spun down? I enabled power level 1 and timeout of 20 min for my 3 toshiba 14tb hdds. How can i view if the disks actually do spin down to optimize disk access?
root@truenas[~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 12.7T 0 disk
├─sda1 8:1 0 2G 0 part
│ └─md127 9:127 0 2G 0 raid1
│ └─md127 253:0 0 2G 0 crypt [SWAP]
└─sda2 8:2 0 12.7T 0 part
sdb 8:16 0 232.9G 0 disk
├─sdb1 8:17 0 1M 0 part
├─sdb2 8:18 0 512M 0 part
├─sdb3 8:19 0 216.4G 0 part
└─sdb4 8:20 0 16G 0 part
sdc 8:32 0 12.7T 0 disk
├─sdc1 8:33 0 2G 0 part
│ └─md127 9:127 0 2G 0 raid1
│ └─md127 253:0 0 2G 0 crypt [SWAP]
└─sdc2 8:34 0 12.7T 0 part
sdd 8:48 0 12.7T 0 disk
├─sdd1 8:49 0 2G 0 part
│ └─md127 9:127 0 2G 0 raid1
│ └─md127 253:0 0 2G 0 crypt [SWAP]
└─sdd2 8:50 0 12.7T 0 part

 

[justjasch]

hdparm -C /dev/sdx

root@truenas[~]# hdparm -C /dev/sdu
/dev/sdu:
drive state is: active/idle

with hdparm -y /dev/sdx u can man. standby (-Y for sleep)

root@truenas[~]# hdparm -y /dev/sdu

/dev/sdu:

issuing standby command

root@truenas[~]# hdparm -C /dev/sdu

/dev/sdu:
drive state is: standby

 

[peterge]

Okay, my drives report different values. sda reports:

Code:

root@truenas[~]# hdparm -C /dev/sda

/dev/sda:
 drive state is:  idle

or

Code:

root@truenas[~]# hdparm -C /dev/sda

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

Does this mean its working?

Code:

root@truenas[~]# hdparm -B /dev/sda 

/dev/sda:
 APM_level    = 1