Go Linux disk space Monitoring alarm

Linux disk space Monitoring alarm

Original: http://www.cnblogs.com/kerrycode/p/3415242.html

Linux systems need to monitor the use of each partition of the disk, to avoid a variety of unexpected situations, resulting in the depletion of disk space, such as a partition by the Oracle's archive log exhausted, resulting in the subsequent log files can not be archived, the Oracle database error occurs. Monitoring the use of disk space, there are many tools, such as Nagios, in fact, the simplest is the use of shell scripts. Here's how to monitor and alert disk space with shell scripts and crontab jobs.

General view the usage of each partition of the disk can be viewed through the DF command, there are two shell scripts to get the percentage of disk usage online.

1:df-h | Grep/dev | awk ' {print $} ' | Cut-f 1-d "%"

2:df-h | Grep/dev | awk ' {print $} ' | Sed ' s/%//g '

However, these two commands still have some bugs, such as the following: When the display is too long, it causes the line to break. At this point, the shell script above cannot get its value.

Especially in some special cases, it's impossible to get the data exactly.

Just a little bit of tweaking on the parameters.

1:df-p | Grep/dev | awk ' {print $} ' | Cut-f 1-d "%"

2:df-p | Grep/dev | awk ' {print $} ' | Sed ' s/%//g '

The following script is used to monitor the usage of each partition, when the threshold is exceeded (the default is 90%), send a warning message, notify the administrator to timely processing.

#*************************************************************************# Filename:disk_capatiy_ala rm.sh #*************************************************************************# author:kerry# Cr                               eatedate:2013-11-07# description:this script is mointoring the Linux disk# capacity, if disk used more than 90%,# then it'll send a alarm email#** ***********************************************************************#! /bin/bashemail_content= "/home/oracle/scripts/output/disk_sendmail.pl" email_logfile= "/home/oracle/scripts/ Output/diskdetail.txt "; cat/dev/null > ${email_content};cat/dev/null > ${email_logfile}; SendMail () {date_today= ' date +%y_%m_%d ' subject= "the server xxxxxx\ ' s Disk capacity Alarm" content= "Dear all, the server xx XX (xxx.xxx.xxx.xxx) disk capacity Alarm, please take action for it. Many thanks! " echo "#!/usr/bin/perl" >> ${Email_content}echo "Use Mail::sender;" >> ${email_content}echo "\ $sender = new Mail::sender {smtp =" xxx.xxx.xx X.xxx ', from = = ' [email protected] '}; ">> ${email_content}echo" \ $sender->mailfile ({to + = ' [email protected] ', ">> ${email_content} echo "cc=>" [email protected] ', ">> ${email_content}echo" subject = ' $subject ', ">> ${email_ Content}echo "msg = ' $content '," >> ${email_content}echo "file = ' ${email_logfile} ');" >> ${email_content}perl ${email_content}}for D in ' df-p | Grep/dev | awk ' {print $} ' | Sed ' s/%//g ' do if [$d-GT 90];           Then df-h >> $email _logfile;             SendMail;    Exit 0; Fidone

Go Linux disk space Monitoring alarm