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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 re-
       ferred 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	 Mean-
       ing"  (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 sd-
       parm(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  war-
       ranty;  not  even  for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
       POSE.

SEE ALSO
       sdparm (sdparm)

sdparm-1.11			 February 2016		     SAS_DISK_BLINK(8)

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<https://man.freebsd.org/cgi/man.cgi?query=sas_disk_blink&sektion=8&manpath=FreeBSD+Ports+14.3.quarterly>

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