]
DESCRIPTION
Serial General Purpose Input Output (SGPIO) is a communication method
used between a main board and a variety of internal and external hard
disk drive bay enclosures. This utility can be used to control LEDs in
an enclosure. For more information about SGPIO, please consult the
SFF-8485 Specification.
OPTIONS
-h, help
displays a short help text
-V, version
displays the utility and AHCI SGPIO specification
-d, disk
disk name of LED location. Names are sda,sdb,sdc,... Multiple
names can be provided in a comma-delimited list.
-p, port
SATA port number of LED location, can be used if a disk name is
no longer valid. 0,1,2,3,... Multiple ports can be provided in a
comma-delimited list.
-s, status
status of the LED to set. LED status is: locate, fault,
rebuild, off
-f, freq
Set the frequency at which the LED should blink (in Hz). Fre‐
quency should be an integer between 1 and 10.
EXAMPLES
Set the locate LED on SDA with an Intel Intelligent backplane:
sgpio -d sda -s locate
Set the locate LED on SDA to flash at 3 Hz for non-intelligent back‐
planes:
sgpio -d sda -s locate -f 3
Set SATA port 2 with fault at a 3 Hz flash rate:
sgpio -p 2 -s fault -f 3
Set disks sda through sdf to fault:
sgpio -d sda,sdb,sdc,sdd,sde,sdf -s fault
EXIT STATUS
sgpio should return zero when successful. It will return with a non-
zero value if there was a failure.
AUTHOR
Eric R. Hall
version 0.3 December 2007 sgpio(1)