I have 2 seagate USB 3.0 drives-- i think they are actually the smaller laptop HDs put into a slimmer than normal enclosure. My linux Mint system does see both hard drives but, after some time, they disappear and the power LEDs flash on the enclosure itself. I suspect these HDs power down don't spin back up and Linux doesn't know what to do about it. I was running Windows on this machine with these hard drives and somehow when the HDs did go to sleep, they always spun back up on demand. I could tell because there was a small delay while they woke up. So Windows (version 7 to be exact) has some kind of support that Linux seems not to. Note: I did not have to install any special software or drivers for HDs to sleep/wake up properly in Windows.
It would be nice if these HDs could be made to work like in Windows but I'll settle for disabling all power management instead. I tried the following, but I have no idea if it worked or if what it says is actually an error message.
Code: Select all
[b]sudo hdparm -Z /dev/sdb1[/b]
/dev/sdb1:
disabling Seagate auto powersaving mode
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[b]sudo hdparm -C /dev/sdb1[/b]
/dev/sdb1:
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
drive state is: standby
