monitors:diskstat.pl

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monitors:diskstat.pl [2019/02/12 17:35] – [diskstat.pl] wnelismonitors:diskstat.pl [2019/02/16 17:53] (current) – [diskstat.pl] wnelis
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 ===== Installation ===== ===== Installation =====
  
-At the client side, script diskstat.pl and module diskstat.pm need to be installed and one configuration file needs to be modified. At the server side, two scripts need to be installed and four configuration files of Xymon need to be modified.+At the client side, script diskstat.pl and module diskstat.pm need to be installed and one configuration file needs to be modified. At the server side, one script needs to be installed and four configuration files of Xymon need to be modified.
  
 === Client side === === Client side ===
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 # This script does not have any memory by design. It only reports the values # This script does not have any memory by design. It only reports the values
 # found in /proc/diskstat to Xymon, although it does convert some values to a # found in /proc/diskstat to Xymon, although it does convert some values to a
-# more appropiate unit. In most cases, the difference with the value in the+# more appropriate unit. In most cases, the difference with the value in the
 # previous pass is of interest. These differences are computed by RRD, prior to # previous pass is of interest. These differences are computed by RRD, prior to
 # saving the values. # saving the values.
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 my $InpFil= '/proc/diskstats' ; # Input file name my $InpFil= '/proc/diskstats' ; # Input file name
 # #
-# Define the name of each dataset and the unit conversion factor. As most of the +# Define the name of each data-set, the unit conversion factor and the RRD type. 
-# datasets are defined to be of type DERIVED, the value passed to RRD must be an +# Note that RRD requires that the values of type 'DERIVE' are integer. If 
-# integer number. Thus the times expressed in [ms] are *not* converted to [s].+# however floating point numbers are used, the RRD type must be set to 
 +# 'DDERIVE'.
 # #
 my @DS= ( # Define parameters of the datasets my @DS= ( # Define parameters of the datasets
-    [ 'Name'     ,   1, ''       ], #  0 - Name of disk / partition +    [ 'Name'     ,     1, ''        ], #  0 - Name of disk / partition 
-    [ 'RdRequest',   1, 'DERIVE' ], #  1 - Read requests +    [ 'RdRequest',     1, 'DERIVE'  ], #  1 - Read requests 
-    [ 'RdMerge'  ,   1, 'DERIVE' ], #  2 - Read request merges +    [ 'RdMerge'  ,     1, 'DERIVE'  ], #  2 - Read request merges 
-    [ 'RdAmount' , 512, 'DERIVE' ], #  3 - Sectors read +    [ 'RdAmount' ,   512, 'DERIVE'  ], #  3 - Sectors read 
-    [ 'RdTime'   ,   1, 'DERIVE' ], #  4 - Time spent reading [ms] +    [ 'RdTime'   , 0.001, 'DDERIVE' ], #  4 - Time spent reading [ms] 
-    [ 'WrRequest',   1, 'DERIVE' ], #  5 - Write requests +    [ 'WrRequest',     1, 'DERIVE'  ], #  5 - Write requests 
-    [ 'WrMerge'  ,   1, 'DERIVE' ], #  6 - Write request merges +    [ 'WrMerge'  ,     1, 'DERIVE'  ], #  6 - Write request merges 
-    [ 'WrAmount' , 512, 'DERIVE' ], #  7 - Sectors written +    [ 'WrAmount' ,   512, 'DERIVE'  ], #  7 - Sectors written 
-    [ 'WrTime'   ,   1, 'DERIVE' ], #  8 - Time spent writing [ms] +    [ 'WrTime'   , 0.001, 'DDERIVE' ], #  8 - Time spent writing [ms] 
-    [ 'IoQueue'  ,   1, 'GAUGE'  ], #  9 - Length of I/O queue +    [ 'IoQueue'  ,     1, 'GAUGE'   ], #  9 - Length of I/O queue 
-    [ 'IoTime'   ,   1, 'DERIVE' ], # 10 - Time spent for I/O [ms] +    [ 'IoTime'   , 0.001, 'DDERIVE' ], # 10 - Time spent for I/O [ms] 
-    [ 'IoWTime'  ,   1, 'DERIVE' ] # 11 - Time weighted with (9)+    [ 'IoWTime'  , 0.001, 'DDERIVE' ] # 11 - Time weighted with (9)
 ) ; ) ;
  
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 # #
 # Function BuildRrdData reports the values in Devmon format to Xymon, causing # Function BuildRrdData reports the values in Devmon format to Xymon, causing
-# Xymon to write the values to an RRD. The names of the mountpoints are adapted+# Xymon to write the values to an RRD. The names of the mount-points are adapted
 # to match the Xymon conventions. # to match the Xymon conventions.
 # #
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       } else {       } else {
  $Val= $Val * $DS[$i][1] ; # Unit conversion  $Val= $Val * $DS[$i][1] ; # Unit conversion
- $Result.= sprintf( "%d:", $Val ) ;+ if ( $DS[$i][2] eq 'DDERIVE' ) { 
 +   $Result.= sprintf( "%.3f:", $Val ) ; 
 + } else { 
 +   $Result.= sprintf( "%d:", $Val ) ; 
 + }  # of else
       }  # of else       }  # of else
     }  # of for     }  # of for
  • monitors/diskstat.pl.txt
  • Last modified: 2019/02/16 17:53
  • by wnelis