Udisksctl power-off

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lsusb
.../...
Bus 002 Device 005: ID 1058:25ee Western Digital Technologies, Inc. My Book 25EE
.../...

 lsblk 
 sdc                         8:32   0   3.7T  0 disk
 └─sdc1                      8:33   0   3.7T  0 part

udisksctl power-off -b /dev/sdc1
(no output)

lsusb
no usb device present
 
lsblk 
no device present

Message after power-off

Sep 22 09:51:10 SERVER kernel: usb 2-6: USB disconnect, device number 5
Sep 22 09:51:10 SERVER udisksd[416816]: Powered off /dev/sdc - successfully wrote to sysfs path /sys/devices/pci0000:00/0000:00:14.0/usb2/2-6/remove
Sep 22 09:51:04 SERVER multipathd[856]: sdc: path already removed
Sep 22 09:51:04 SERVER udisksd[416816]: Successfully sent SCSI command START STOP UNIT to /dev/sdc
Sep 22 09:51:03 SERVER udisksd[416816]: Successfully sent SCSI command SYNCHRONIZE CACHE to /dev/sdc
Sep 22 09:45:09 SERVER udisksd[416816]: Unmounted /dev/sdc1 on behalf of uid 0

Related commands

• lsblk
• lsusb

See also

• udisksctl [umount | mount | power-off], status