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       sgdefects [-aelnvx]


       Sgdefects  is  a program that uses the SCSI Generic inter­
       face to send specific SCSI commands to obtain  the  device
       defect  lists.   This  is  useful for analyzing a device's
       grown defects over time to  predict  when  a  failure  may
       occur.   The SCSI Generic interface requires that the ker­
       nel .config file have CONFIG_CHR_DEV_SG set.

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


       Command line options are described below.

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

       -a     Causes  the functions to be performed automatically
              on all connected SCSI devices.

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

       -l     By   default,  the  primary  defect  list  is  only
              obtained if the kernel version is 2.4  or  greater.
              If  this  option  is  specified,  both  the primary
              defect list and  the  grown  defect  list  will  be
              obtained, regardless of the kernel version.

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

       -v     Causes the defect values to be listed  in  addition
              to the defect counts.  The hex values will be writ­
              ten to the log file sgdefects.log

       -x     Causes extra debug messages to be displayed.


       sgdiag(8) sgdskfl(8) sgmode(8)

       for more details regarding distribution.

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


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

                     Version 1.1: 09 Nov 2001        SGDEFECTS(8)



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