[系統] 監控HD容量

檔名：/shell/disk.sh

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說明：利用 mount 指令解決 Read-only file system 問題

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#!/bin/sh

ADMIN="xxx@crypto.ee.ncku.edu.tw"

# set alert level 90% is default

ALERT=90

day=`date +"%Y%m%d%H%M"`

df -H | grep -vE '^Filesystem|dev/da0s1a|devfs' | awk '{ print $5 " " $6 }' | while read output;

do

 echo $output

 usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1  )

 partition=$(echo $output | awk '{ print $2 }' )

 if [ $usep -ge $ALERT ]; then

   echo "Running out of space \"$partition ($usep%)\" on $(hostname) as on $(date)" |

    mail -s "Alert: Almost out of disk space $usep%" $ADMIN

# clear ops server /var/mail/root file

   if [ $partition=="/usr/testbed/usersvar" ]; then

     mount -o rw  /usr/testbed/usersvar

     cp -p /usr/testbed/usersvar/mail/root /mnt/backup2/ops_var_log_bak/mail/root."$day"

     cat /dev/null > /usr/testbed/usersvar/mail/root

    umount /usr/testbed/usersvar

   fi

# clear boss server /var/log

   if [ $partition=="/var" ]; then

     cp -p /var/log/auth.log /mnt/backup2/boss_var_log_bak/auth.log."$day"

     cat /dev/null > /var/log/auth.log

     cp -p /var/log/maillog /mnt/backup2/boss_var_log_bak/maillog."$day"

     cat /dev/null > /var/log/maillog

   fi

 fi

done

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修改crontab

#ee /etc/crontab

-----------------------------------------------------------------------

新增底下二行!! 每5分鐘檢查一次

# mointor disk

*/5     *       *       *       *       root    /shell/disk.sh