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OS_Linux_diskstats.xml
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<?xml version="1.0" encoding="UTF-8"?>
<zabbix_export>
<version>4.4</version>
<date>2020-05-24T21:08:12Z</date>
<groups>
<group>
<name>Templates/mfr</name>
</group>
</groups>
<templates>
<template>
<template>OS Linux diskstats</template>
<name>OS Linux diskstats</name>
<description>Self-contained template for monitoring disk statistics on Linux systems.
Source: https://github.com/frei-style/zabbix-linux-diskstats-template</description>
<groups>
<group>
<name>Templates</name>
</group>
</groups>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<items>
<item>
<name>diskstats (master)</name>
<type>ZABBIX_ACTIVE</type>
<key>vfs.file.contents[/proc/diskstats]</key>
<delay>30s</delay>
<history>0</history>
<trends>0</trends>
<value_type>TEXT</value_type>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JAVASCRIPT</type>
<params>// https://www.kernel.org/doc/Documentation/ABI/testing/procfs-diskstats
// https://www.kernel.org/doc/Documentation/admin-guide/iostats.rst
function zeroTest(element) {
return parseInt(element) === 0;
}
var returnData = [];
var lines = value.split("\n");
var lineCount = lines.length;
for(var lineNumber = 0; lineNumber < lineCount; lineNumber++) {
var fields = lines[lineNumber].trim().split(/[ ]+/);
// skip devices by name
if(/^(ram[0-9]+|dm-[0-9]+|loop[0-9]+)$/.test(fields[2])) {
continue;
}
var allZero = fields.slice(3).every(zeroTest);
// skip devices where all values are 0
if(allZero) {
continue;
}
var diskData = {
"majorNumber": parseInt(fields[0]),
"minorNumber": parseInt(fields[1]),
"deviceName": fields[2],
"readsCompleted": parseInt(fields[3]),
"readsMerged": parseInt(fields[4]),
"sectorsRead": parseInt(fields[5]),
"timeSpentReading": parseInt(fields[6]),
"writesCompleted": parseInt(fields[7]),
"writesMerged": parseInt(fields[8]),
"sectorsWritten": parseInt(fields[9]),
"timeSpentWriting": parseInt(fields[10]),
"iOsCurrentlyInProgress": parseInt(fields[11]),
"timeSpentDoingIOs": parseInt(fields[12]),
"weightedTimeSpentDoingIOs": parseInt(fields[13]),
}
if(fields.length>=18) {
diskData["discardsCompleted"] = parseInt(fields[14]);
diskData["discardsMerged"] = parseInt(fields[15]);
diskData["sectorsDiscarded"] = parseInt(fields[16]);
diskData["timeSpentDiscarding"] = parseInt(fields[17]);
}
if(fields.length>=20) {
diskData["flushRequestsCompleted"] = parseInt(fields[18]);
diskData["timeSpentFlushing"] = parseInt(fields[19]);
}
returnData.push(diskData);
}
return JSON.stringify(returnData);</params>
</step>
</preprocessing>
</item>
</items>
<discovery_rules>
<discovery_rule>
<name>Discover Block Devices</name>
<type>DEPENDENT</type>
<key>linux.diskstats.discovery</key>
<delay>0</delay>
<lifetime>7d</lifetime>
<item_prototypes>
<item_prototype>
<name>{#DEVICE_NAME}: discards completed</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},discardsCompleted]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>This is the total number of discards completed successfully.
Linux 4.18+</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].discardsCompleted.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: discards merged</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},discardsMerged]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>Discards which are adjacent to each other may be merged for efficiency. Thus two 4K reads may become one 8K read before it is ultimately handed to the disk, and so it will be counted (and queued) as only one I/O. This field lets you know how often this was done.
Linux 4.18+</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].discardsMerged.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: flush requests completed</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},flushRequestsCompleted]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>This is the number of flush requests completed successfully per second.
Block layer combines flush requests and executes at most one at a time. This counts flush requests executed by disk. Not tracked for partitions.
Linux 5.5+</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].flushRequestsCompleted.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: I/Os currently in progress</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},iOsCurrentlyInProgress]</key>
<delay>0</delay>
<units>!I/Os</units>
<description>Number of I/Os currently in progress.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].iOsCurrentlyInProgress.first()</params>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: reads completed</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},readsCompleted]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>This is the total number of reads completed successfully.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].readsCompleted.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: reads merged</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},readsMerged]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>Number of reads merged per second.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].readsMerged.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: sectors discarded</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},sectorsDiscarded]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>This is the total number of sectors discarded successfully.
Linux 4.18+</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].sectorsDiscarded.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: sectors read</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},sectorsRead]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>Number of sectors read per second.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].sectorsRead.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: sectors written</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},sectorsWritten]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>This is the total number of sectors written successfully per second.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].sectorsWritten.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: time spent discarding</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},timeSpentDiscarding]</key>
<delay>0</delay>
<units>!ms</units>
<description>This is the total number of milliseconds spent by all discards (as measured from __make_request() to end_that_request_last()).
Linux 4.18+</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].timeSpentDiscarding.first()</params>
</step>
<step>
<type>SIMPLE_CHANGE</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: time spent doing I/Os</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},timeSpentDoingIOs]</key>
<delay>0</delay>
<units>!ms</units>
<description>Number of milliseconds spent doing I/Os.
Since Linux 5.0 this field counts jiffies when at least one request was started or completed. If request runs more than 2 jiffies then some I/O time might be not accounted in case of concurrent requests.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].timeSpentDoingIOs.first()</params>
</step>
<step>
<type>SIMPLE_CHANGE</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: time spent flushing</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},timeSpentFlushing]</key>
<delay>0</delay>
<units>!ms</units>
<description>This is the total number of milliseconds spent by all discards (as measured from __make_request() to end_that_request_last()).
Linux 5.5+</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].timeSpentFlushing.first()</params>
</step>
<step>
<type>SIMPLE_CHANGE</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: time spent reading</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},timeSpentReading]</key>
<delay>0</delay>
<units>!ms</units>
<description>This is the total number of milliseconds spent by all reads (as measured from __make_request() to end_that_request_last()).</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].timeSpentReading.first()</params>
</step>
<step>
<type>SIMPLE_CHANGE</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: time spent writing</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},timeSpentWriting]</key>
<delay>0</delay>
<units>!ms</units>
<description>This is the total number of milliseconds spent by all writes (as measured from __make_request() to end_that_request_last()).</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].timeSpentWriting.first()</params>
</step>
<step>
<type>SIMPLE_CHANGE</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: weighted time spent doing I/Os</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},weightedTimeSpentDoingIOs]</key>
<delay>0</delay>
<units>!ms</units>
<description>This is the numer per second of each of this actions: I/O start, I/O completion, I/O merge, or read. This can provide an easy measure of both I/O completion time and the backlog that may be accumulating.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].weightedTimeSpentDoingIOs.first()</params>
</step>
<step>
<type>SIMPLE_CHANGE</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: writes completed</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},writesCompleted]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>This is the total number of writes completed successfully per second.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].writesCompleted.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
<item_prototype>
<name>{#DEVICE_NAME}: writes merged</name>
<type>DEPENDENT</type>
<key>linux.diskstats[{#DEVICE_NAME},writesMerged]</key>
<delay>0</delay>
<units>!requests/s</units>
<description>This is the total number of writes merged per second.</description>
<applications>
<application>
<name>diskstats</name>
</application>
</applications>
<preprocessing>
<step>
<type>JSONPATH</type>
<params>$.[?(@.deviceName == "{#DEVICE_NAME}")].writesMerged.first()</params>
</step>
<step>
<type>CHANGE_PER_SECOND</type>
<params/>
</step>
<step>
<type>DISCARD_UNCHANGED_HEARTBEAT</type>
<params>5m</params>
</step>
</preprocessing>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
</item_prototype>
</item_prototypes>
<graph_prototypes>
<graph_prototype>
<name>{#DEVICE_NAME}: I/O Times</name>
<graph_items>
<graph_item>
<color>1A7C11</color>
<item>
<host>OS Linux diskstats</host>
<key>linux.diskstats[{#DEVICE_NAME},timeSpentReading]</key>
</item>
</graph_item>
<graph_item>
<sortorder>1</sortorder>
<color>3949AB</color>
<item>
<host>OS Linux diskstats</host>
<key>linux.diskstats[{#DEVICE_NAME},timeSpentWriting]</key>
</item>
</graph_item>
</graph_items>
</graph_prototype>
<graph_prototype>
<name>{#DEVICE_NAME}: IOPS</name>
<graph_items>
<graph_item>
<color>1A7C11</color>
<item>
<host>OS Linux diskstats</host>
<key>linux.diskstats[{#DEVICE_NAME},readsCompleted]</key>
</item>
</graph_item>
<graph_item>
<sortorder>1</sortorder>
<color>303F9F</color>
<item>
<host>OS Linux diskstats</host>
<key>linux.diskstats[{#DEVICE_NAME},writesCompleted]</key>
</item>
</graph_item>
</graph_items>
</graph_prototype>
</graph_prototypes>
<master_item>
<key>vfs.file.contents[/proc/diskstats]</key>
</master_item>
<lld_macro_paths>
<lld_macro_path>
<lld_macro>{#DEVICE_NAME}</lld_macro>
<path>$.deviceName</path>
</lld_macro_path>
</lld_macro_paths>
</discovery_rule>
</discovery_rules>
</template>
</templates>
</zabbix_export>