On 07/09/2012 08:21 PM, Matthias Prager wrote: > > I haven't checked the scsi logging side, but about the only commands > that wake up the disks are 'smartctl -a /dev/sda' and 'sg_start' > (smartcl maybe issuing a START UNIT command on it's own). smartctl -a does appear to wake the disks. The scsi log shows an IDENTIFY and then several ATA passthrough commands (one of which takes ~10 seconds to complete). So, I don't see an explicit START UNIT, but one of those ATA commands which I didn't decode could certainly trigger the wakeup. -- Rob -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
