Example Analysis of read and write Monitoring of mrtg hard disk in Ubuntu
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Ubuntu has always supported the mainstream i386, AMD64 and PowerPC platforms, so most PC users can install the corresponding Ubuntu version on their computers.
Hard disk read and write monitoring [collection every 5 minutes by default]
Ubuntu mrtg switches to superuser:
Sudo-sH
Ubuntu mrtg set up a hard disk read-write script:
Mkdir / opt/mrtg
Vim / opt/mrtg/mrtg.disk
#! / bin/bash
Hd=sda
Disk=/dev/$hd
UPtime= `/ usr/bin/uptime | awk'{print $3 "" $4 "" $5}'`
KBread_sec= `iostat-x $disk | grep $hd | awk'{print 8 $}'`
KBwrite_sec= `iostat-x $disk | grep $hd | awk'{print 9 $}'`
Echo $KBread_sec
Echo $KBwrite_sec
Echo $UPtime
Hostname
Ubuntu mrtg enables scripts to execute:
Chmod + 755 / opt/mrtg/mrtg.disk
Modify / etc/mrtg.cfg to add hard disk read and write to file *
Target [disk]: `/ opt/mrtg/ mrtg.disk`
Title [disk]: Disk HDA I/O Utilization Report
# Unscaled [disk]: dwym
MaxBytes [disk]: 10240000
PageTop [disk]: Disk I/O Utilization Report
Kmg [disk]: KB,MB,GB
LegendI [disk]: Disk I/O KBread/sec
LegendO [disk]: Disk I/O KBwrite/sec
Legend1 [disk]: Disk I/O KBread/sec
Legend2 [disk]: Disk I/O KBwrite/sec
YLegend [disk]: Megabytes
ShortLegend [disk]: &
Options [disk]: growright,gauge,nopercent
Rebuild the index page:
Indexmaker / etc/mrtg.cfg > / var/www/mrtg/index.html
Visit:
Http://localhost/mrtg/
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