monitors:diskstat.pl

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monitors:diskstat.pl [2019/02/12 18:46] – [Installation] wnelismonitors:diskstat.pl [2019/02/16 17:53] (current) – [diskstat.pl] wnelis
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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