Put disks to SLEEP (not STANDBY)

[neubert]

Hi,

my disks have 3 power modes:
- ACTIVE or IDLE
- STANDBY
- SLEEP

They are configured to go to STANDBY after 5 minutes of inactivity. This works (I check it with a little script that remotely logs the power mode every minute).

What I want to accomplish is to configure the drives to enter SLEEP mode after some time of inactivity. I do not see an option to do so. Who can help?

Cheers
Boris

# camcontrol devlist
<ST2000DL003-9VT166 CC32> at scbus0 target 0 lun 0 (ada0,pass0)
<ST2000DL003-9VT166 CC32> at scbus1 target 0 lun 0 (ada1,pass1)
<ST2000DL003-9VT166 CC32> at scbus2 target 0 lun 0 (ada2,pass2)
# smartctl -i /dev/ada0
smartctl 5.41 2011-06-09 r3365 [FreeBSD 8.2-RELEASE-p6 amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda Green (Adv. Format)
Device Model: ST2000DL003-9VT166
Firmware Version: CC32
User Capacity: 2,000,398,934,016 bytes [2.00 TB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 4
Local Time is: Wed Aug 8 22:39:52 2012 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled