$ sudo hdparm -S 120 /dev/sdc
/dev/sdc:
setting standby to 120 (10 minutes)
HDIO_DRIVE_CMD(setidle) failed: Invalid exchange
ので sdparm を試す。
===== インストール =====
$ sudo apt-get install sdparm
===== 使い方 =====
$ sudo sdparm -C stop /dev/sdc
====== 参考 ======
* [[http://everydaylht.com/howtos/multimedia/spin-down-idle-usb-drives/]]
* [[http://www.botcyb.org/2009/04/making-inactve-usb-hard-disk-spin-down.html]]