Force spin-down of external hard-drive on linux (raspberry pi)
- by user258346
I'm currently setting up a home-server using a Raspberry Pi with an external hard-disk connected via usb.
However, my hard-drive will never spin down when being idle.
I tried already the hints provided at raspberrypi.org
... without any success.
1.)
sudo hdparm -S5 /dev/sda
returns
/dev/sda:
setting standby to 5 (25 seconds)
SG_IO: bad/missing sense data, sb[]: 70 00 04 00 00 00 00 0a 00 00 00 00 44 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2.)
sudo hdparm -y /dev/sda
returns
/dev/sda:
issuing standby command
SG_IO: bad/missing sense data, sb[]: 70 00 04 00 00 00 00 0a 00 00 00 00 44 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
...and 3.)
sudo sdparm --flexible --command=stop /dev/sda
returns
/dev/sda: HDD 1234
... without spin-down of the drive.
I use the following hardware:
Inateck FDU3C-2 dual Ports USB 3.0 HDD docking station
Western Digital WD10EZRX Green 1TB
Is it possible, that the sent spin-down-signals are somewhere overwritten/lost/ignored?
