Running hdparm w/o waking up hard disk

Razorblade · #1 15th July 2009, 04:18 PM

I send my hdd to sleep with /sbin/hdparm -S 241 /dev/sd[ab] every day at 8:30 pm. If there's no activity for 30 minutes the drive will enter standby.
At 06:00 am I want to change the 30 minutes to 4 hours.
But when I enter /sbin/hdparm -S 248 /dev/sd[ab] in the morning both drives spin up.

Is is possible to run /sbin/hdparm -S xxx /dev/sd[ab] without waking up a hard disk? Or to detect whether the hard disks are already in standby?

Gödel · #2 15th July 2009, 04:35 PM

perhaps use hdparm -C to check the state:

Quote:

-C Check the current IDE power mode status, which will always be one of unknown (drive does not support this command), active/idle (normal operation), standby (low power mode, drive has spun down), or sleeping (lowest power mode, drive is completely shut down). The -S, -y, -Y, and -Z flags can be used to manipulate the IDE power modes.

Razorblade · #3 16th July 2009, 05:43 AM

Hi Gödel,

thanks I have already read that.
So scripting is the only possible way?

infernosoft · #4 1st September 2009, 10:57 PM

bump! i want to know how can i permanently put my drive to sleep/standby too!