SAS_DISK_BLINK(8)                   SDPARM                   SAS_DISK_BLINK(8)

NAME
       sas_disk_blink - blink the LED on a SAS disk

SYNOPSIS
       sas_disk_blink [--help] [--set NUM] [--verbose] DEVICE

DESCRIPTION
       This bash shell script attempts to blink the LED on the SAS disk
       referred to by DEVICE. By default the LED will blink for 30 seconds.
       This is meant to help identify which disk corresponds to a given
       DEVICE.

       The script use the sdparm utility and manipulates the "Ready LED
       Meaning" (RLM) field in the Protocol specific port mode page in order
       to blink the LED.

OPTIONS
       Arguments to long options are mandatory for short options as well.

       -h, --help
              print out the usage message then exit.

       -s, --set NUM
              when NUM is 0 then the RLM field is cleared. When NUM is 1 then
              the RLM field is set. When NUM > 1 then the SAS disk LED is made
              to blink for NUM seconds. If this option is not given then the
              SAS disk LED is made to blink for 30 seconds.

       -v, --verbose
              increase level or verbosity.

EXIT STATUS
       The exit status of this script is 0 when it is successful. Otherwise
       the exit status is that of the last sdparm utility called. See the
       sdparm(8) man page.

AUTHORS
       Written by D. Gilbert

COPYRIGHT
       Copyright (C) 2013-2016 Douglas Gilbert
       This software is distributed under a FreeBSD license. There is NO
       warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
       PURPOSE.

SEE ALSO
       sdparm (sdparm)

sdparm-1.11                      February 2016               SAS_DISK_BLINK(8)