Disk IO Throughput:

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This modules returns current throughtput on Disk, based on systat package. This sample is for /dev/sda.

You need to install systat package.

Module data

module_begin 
module_name IO Sda Read/sec 
module_type generic_data 
module_exec iostat -k | grep sda | awk '{ print $3 }' 
module_description Read IO in KB on /dev/sda 
module_end

module_begin 
module_name IO Sda Write/sec 
module_type generic_data 
module_exec iostat -k | grep sda | awk '{ print $4 }' 
module_description Write IO in KB on /dev/sda 
module_end