> 用hdparm -y /dev/sda 或者 hdparm -Y /dev/sda 试试 我试了一下，看来不行
# hdparm --verbose -y /dev/sda /dev/sda: issuing standby command outgoing cdb: 85 06 20 00 00 00 00 00 00 00 00 00 00 40 e0 00 SG_IO: ATA_16 status=0x0, host_status=0x5, driver_status=0x0 trying legacy HDIO_DRIVE_CMD outgoing cdb: 85 06 20 00 00 00 00 00 00 00 00 00 00 40 94 00 SG_IO: ATA_16 status=0x0, host_status=0x5, driver_status=0x0 trying legacy HDIO_DRIVE_CMD HDIO_DRIVE_CMD(standby) failed: Invalid argument # hdparm --verbose -Y /dev/sda /dev/sda: issuing sleep command outgoing cdb: 85 06 20 00 00 00 00 00 00 00 00 00 00 40 e5 00 SG_IO: ATA_16 status=0x0, host_status=0x5, driver_status=0x0 trying legacy HDIO_DRIVE_CMD outgoing cdb: 85 06 20 00 00 00 00 00 00 00 00 00 00 40 99 00 SG_IO: ATA_16 status=0x0, host_status=0x5, driver_status=0x0 trying legacy HDIO_DRIVE_CMD HDIO_DRIVE_CMD(sleep) failed: Invalid argument sdparm -C stop 也不行
