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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 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)
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