-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 01/07/2014 09:11 PM, Aaron Lu wrote: > I thought that feature is used to control if a disk should be spun > up once powered from the host side. That *is* what it sounds like, only ATA disks either spin up as soon as power is applied, or wait for an actual command issued by higher layers. There doesn't seem to be any low level SATA mechanism to spin the drive up that the SSS feature could toggle, so it seems to simply be a hint to libata, and possibly the bios. > Too bad for a jumper, that's beyond our control. And about the > hdparm, does the setting survive a power cycle? Yes, otherwise there wouldn't be much point to a setting that only matters at power on ;) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCgAGBQJSzLXEAAoJEI5FoCIzSKrwhVwH/2amZwCu1WIFiPswU2ydIZhR lGL0+0C9hKb4O+FEahkLMYsX/bouxtUs3HOcAJOlmmAFZC5yhczIBijcuIKjZyW5 HAv4Sfw1xIjC6N5pMtNnnG8SUORDXy4cbMDS4+poC0aKIWw47GMNin/Uqav4Wn90 3U9nbUm7sBZ6zSLpDkenB5kZKUYmMaziwEb1IwBvxrRdnS3X5B9L3WuuCjheQoF8 YhSFdc/0OGdRRiY/oaZwizRV7bJO2sg99qRoSVIa8ZnL5v9HzT0MCVq9aUBXNLUI eTyv0O1rkgW5lFk+4aIhJUPSb52F4lNwBmNVINIzLCehpy/oT1DVZN3sL+ykBeI= =DJOH -----END PGP SIGNATURE----- -- 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