This plugin checks IO stats of one (or all) disk. It can be used to send alerts when maximum hard drive IO/s or sectors read|write/s is reached
Usage
./check_diskstat.sh -d DEVICE -w tps,read,write -c tps,read,write | -h
-d DEVICEÂ Â Â Â Â Â Â Â Â Â Â DEVICE must be without /dev (ex: -d sda)
-w/c TPS,READ,WRITEÂ TPS means transfer per seconds (aka IO/s) READ and WRITE are in sectors per seconds
 Example
./check_diskstat.sh -d sda -w 200,100000,100000 -c 300,200000,200000
This plugin uses /sys filesystem for retrieving data. Average values are then calculated by keeping a history file.
In order to check all disks on your system, you can use check_all_diskstat.sh. (Please, review it to set path to check_diskstat.sh correctly)