Cacti hard disk I/O Monitoring Method

CactiIs a commonly used monitoring network software, sometimes I useMonitoringMyHard DiskI/O. Let's see how it works!

Cacti hard disk I/O monitoring method:

The cacti template can only monitor the disk usage, but cannot monitor the usage percentage. Therefore, we can customize cdef to monitor the disk usage and use the thold plug-in to implement the alarm function. All the materials found on the Internet are implemented on cacti.0.8.6, and I use cacti.0.8.7. Therefore, make the following changes based on the actual situation:

Under the cacti directory, vi global_arrays.php

Search custom_data_source_types. Modify the following section:

 
 

  
  
$custom_data_source_types = array(  
  
  
 
  
  
"CURRENT_DATA_SOURCE" => "Current Graph Item Data Source",  
  
  
 
  
  
"ALL_DATA_SOURCES_NODUPS" => "All Data Sources (Don't Include Duplicates)",  
  
  
 
  
  
"ALL_DATA_SOURCES_DUPS" => "All Data Sources (Include Duplicates)",  
  
  
 
  
  
"SIMILAR_DATA_SOURCES_NODUPS" => "All Similar Data Sources (Don't Include Duplicates)",  
  
  
 
  
  
"SIMILAR_DATA_SOURCES_DUPS" => "All Similar Data Sources (Include Duplicates)",  
  
  
 
  
  
"CURRENT_DS_MINIMUM_VALUE" => "Current Data Source Item: Minimum Value",  
  
  
 
  
  
"CURRENT_DS_MAXIMUM_VALUE" => "Current Data Source Item: Maximum Value",  
  
  
 
  
  
"CURRENT_GRAPH_MINIMUM_VALUE" => "Graph: Lower Limit",  
  
  
 
 
 

// Add the following two rows

 
 

  
  
"CURRENT_GRAPH_MAXIMUM_VALUE" => "Graph: Upper Limit",  
  
  
 
  
  
"VALUE_OF_HDD_TOTAL" => "Value of hdd_total data source");  
  
  
 
 
 

// Chinese version:

"CURRENT_GRAPH_MAXIMUM_VALUE" => "Image: upper limit ",

"VALUE_OF_HDD_TOTAL" => "values of all hard disk data ");

Create a cdef module in the Graph Management-cdefs on the cacti interface and add the following fields by name:

 
 

  
  
Item #1 Special Data Source: CURRENT_DATA_SOURCE  
  
  
 
  
  
Item #2 Custom String: 100  
  
  
 
  
  
Item #3 Operator: *  
  
  
 
  
  
Item #4 Special Data Source: VALUE_OF_HDD_TOTAL  
  
  
 
  
  
Item #5 Operator: /  
  
  
 
 
 

That is to say

 
 

  
  
cdef=CURRENT_DATA_SOURCE,100,*,VALUE_OF_HDD_TOTAL,/  
  
  
 
 
 

In this way, you can add the monitoring Hard disk module in Threshold Templates. I added the Host MIB-Hard Drive Space, and finally selected the custom CDEF in Threshold cdef, in this way, the hard disk usage can be monitored normally.

After reading the complete article, I think everyone has learned how to monitor hard disk I/O through Cacti! Wish you success!

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