> How can I control the automatic power management feature of my SATA disk > drives? Right now the heads are unloading so frequently that within > one year I will have exceeded the rated number of load/unload cycles for > the drives. The drives are Western Digital model WD10EADS. I tried > using "hdparm -B 254" and "hdparm -B 0", but neither works: > > # hdparm -B 254 /dev/sda > > /dev/sda: > setting Advanced Power Management level to 0xfe (254) > HDIO_DRIVE_CMD failed: Input/output error > HDIO_DRIVE_CMD(identify) failed: Input/output error > # hdparm -B 0 /dev/sda > > /dev/sda: > setting Advanced Power Management level to 0xfe (254) > HDIO_DRIVE_CMD failed: Input/output error > HDIO_DRIVE_CMD(identify) failed: Input/output error > > My efforts to find anything useful with 'sdparm' have been fruitless. > Hi, I use both: hdparm -q -S 0 /dev/sda hdparm -q -B 255 /dev/sda which seems to work. peter -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines