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sgraidmon



SYNOPSIS

       sgraidmon [-bernx -t time]


DESCRIPTION

       Sgraidmon  is  a program that uses the SCSI Generic inter­
       face to monitor SCSI devices which may be part of a  soft­
       ware  RAID,  so  that hot-removal and hot-insertion events
       can be detected and acted upon.  It also queries the  hot-
       swap backplane, if present, with SAF-TE commands to detect
       hot-insertions.   For  actions,  this  utility  invokes  a
       script  (/sbin/mdevt)  if  an  insertion  or removal event
       occurs.  The SCSI Generic interface requires that the ker­
       nel .config file have CONFIG_CHR_DEV_SG set.

       A log file, named sgraidmon.log is created in the /var/log
       directory which logs the status of the functions  and  any
       errors.


OPTIONS

       Command line options are described below.

       -?     This  option  displays  a  summary  of the commands
              accepted by sgraidmon

       -b     Causes this utility to run in background as a  dae­
              mon.

       -e     Causes  any  file writes to be avoided, such as the
              log file.

       -m     Max  serial  number  length  of  12  instead  of  8
              (default).   This may be needed if you have Fujistu
              drives.

       -n     Naming.  By default, the device names are displayed
              as numeric sequences (/dev/sg0).  This option shows
              the   device   names   as   alphabetic    sequences
              (/dev/sga).

       -r     Run  once.  By default, this utility runs in a con­
              tinuous loop.  This option causes it  to  only  run
              one pass.

       -t     Time  interval.   The default polling interval is 5
              seconds.  This option can set  the  interval  to  a
              different number of seconds.

       -x     Causes extra debug messages to be displayed.

       it  and/or  modify  it under the terms of the BSD License.
       See the COPYING file included with this  software  package
       for more details regarding distribution.

       sgraidmon  is distributed in the hope that it will be use­
       ful, but WITHOUT ANY WARRANTY.


AUTHOR

       Andy Cress <andrew.r.cress@intel.com>

                     Version 1.2: 12 Nov 2002        SGRAIDMON(8)
  

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