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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
       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	 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
       sdparm(8) man page.

AUTHORS
       Written by D. Gilbert

COPYRIGHT
       Copyright © 2013 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-1.08			   May 2013		     SAS_DISK_BLINK(8)

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