On 10/14/07, Bart Samwel <bart@xxxxxxxxx> wrote:Some things to check:
* Run "hdparm -I" on your drive. In the "Capabilities" section there is
a line "Standby timer values", for some drives this mentions a device
specific minimum. I know some drives that ignore any setting below 60
seconds.
* I also know of quite a number of drives where hdparm -B settings
override the -S settings, even if you set the -S settings after the
hdparm -B settings. You could try combinations with various values of
hdparm -B, especially 1 and 255.
Thanks for the suggestions.
The -I command prints out a bunch of stuff including:
Standby timer values: spec'd by Standard, with device specific minimum
I tried setting -B to 1 and and then set -S to 5 minutes.
Also, -B 255 and then set -S to 5 minutes.
No luck with either. These drives want to keep running.
One thing of possible interest: The -B command printed
the following message:
/dev/sda:
setting Advanced Power Management level to 0x01 (1)
HDIO_DRIVE_CMD failed: Input/output error
I would guess that the first line came out just before
hdparm tried to do the set, and the second line indicates
that the set failed.
Perhaps -S is failing too, just without the diagnostic?