initial commit
This commit is contained in:
Fabio Scotto di Santolo
381
chapter17/fs_mon_ALL_OS.ksh
Executable file
381
chapter17/fs_mon_ALL_OS.ksh
Executable file
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#!/usr/bin/ksh
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#
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# SCRIPT: fs_mon_ALL_OS.ksh
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# AUTHOR: Randy Michael
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# DATE: 09-25-2007
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# REV: 6.0.P
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#
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# PURPOSE: This script is used to monitor for full filesystems,
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# which are defined as .exceeding. the MAX_PERCENT value.
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# A message is displayed for all .full. filesystems.
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#
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# PLATFORM: AIX, Linux, HP-UX, OpenBSD, and Solaris
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#
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# REV LIST:
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# Randy Michael - 08-27-2007
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# Changed the code to use MB of free space instead of
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# the %Used method.
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#
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# Randy Michael - 08-27-2007
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# Added code to allow you to override the set script default
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# for MIN_MB_FREE of FS Space
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#
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# Randy Michael - 08-28-2007
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# Changed the code to handle both %Used and MB of Free Space.
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# It does an .auto-detection. but has override capability
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# of both the trigger level and the monitoring method using
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# the exceptions file pointed to by the $EXCEPTIONS variable
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#
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# Randy Michael - 08-28-2007
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# Added code to allow this script to be executed on
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# AIX, Linux, HP-UX, and Solaris
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#
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# Randy Michael - 09=25=2007
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# Added code for OpenBSD support
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#
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# set -n # Uncomment to check syntax without any execution
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# set -x # Uncomment to debug this script
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#
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##### DEFINE FILES AND VARIABLES HERE ####
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MIN_MB_FREE="100MB" # Min. MB of Free FS Space
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MAX_PERCENT="85%" # Max. FS percentage value
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FSTRIGGER="1000MB" # Trigger to switch from % Used to MB Free
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WORKFILE="/tmp/df.work" # Holds filesystem data
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>$WORKFILE # Initialize to empty
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OUTFILE="/tmp/df.outfile" # Output display file
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>$OUTFILE # Initialize to empty
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EXCEPTIONS="/usr/local/bin/exceptions" # Override data file
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DATA_EXCEPTIONS="/tmp/dfdata.out" # Exceptions file w/o # rows
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EXCEPT_FILE="N" # Assume no $EXCEPTIONS FILE
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THISHOST=`hostname` # Hostname of this machine
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###### FORMAT VARIABLES HERE ######
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# Both of these variables need to be multiplied by 1024 blocks
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(( MIN_MB_FREE = $(echo $MIN_MB_FREE | sed s/MB//g) * 1024 ))
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(( FSTRIGGER = $(echo $FSTRIGGER | sed s/MB//g) * 1024 ))
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###### SHELL SPECIFIC VARIABLES ######
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# Set the correct usage for the echo command for found $SHELL
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case $SHELL in
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*/bin/bash) ECHO="echo -e"
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;;
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*/bin/ksh) ECHO="echo"
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;;
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*/bin/sh) ECHO="echo -e"
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;;
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*) ECHO="echo"
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;;
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esac
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######################################
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####### DEFINE FUNCTIONS HERE ########
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######################################
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function get_OS_info
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{
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# For a few commands it is necessary to know the OS and its level
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# to execute the proper command syntax. This will always return
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# the OS in UPPERCASE
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typeset -u OS # Use the UPPERCASE values for the OS variable
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OS=`uname` # Grab the Operating system, i.e. AIX, HP-UX
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print $OS # Send back the UPPERCASE value
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}
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####################################
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function check_exceptions
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{
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# set -x # Uncomment to debug this function
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while read FSNAME FSLIMIT
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do
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IN_FILE="N"
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# Do an NFS sanity check and get rid of any .:..
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# If this is found it is actually an error entry
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# but we will try to resolve it. It will only
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# work if it is an NFS cross mount to the same
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# mount point on both machines.
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$ECHO $FSNAME | grep ':' >/dev/null \
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&& FSNAME=$($ECHO $FSNAME | cut -d ':' -f2)
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# Check for empty and null variable
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if [[ ! -z $FSLIMIT && $FSLIMIT != '' ]]
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then
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if [[ $FSNAME = $FSMOUNT ]] # Found it!
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then
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# Check for "MB" Characters...Set IN_FILE=MB
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$ECHO $FSLIMIT | grep MB >/dev/null && IN_FILE="MB" \
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&& (( FSLIMIT = $($ECHO $FSLIMIT \
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| sed s/MB//g) * 1024 ))
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# check for '%' Character...Set IN_FILE=PC, for %
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$ECHO $FSLIMIT | grep '%' >/dev/null && IN_FILE="PC" \
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&& FSLIMIT=$($ECHO $FSLIMIT | sed s/\%//g)
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case $IN_FILE in
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MB) # Use MB of Free Space Method
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# Up-case the characters, if they exist
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FSLIMIT=$($ECHO $FSLIMIT | tr '[a-z]' '[A-Z]')
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# Get rid of the 'MB' if it exists
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FSLIMIT=$($ECHO $FSLIMIT | sed s/MB//g)
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# Test for blank and null values
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if [[ ! -z $FSLIMIT && $FSLIMIT != '' ]]
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then
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# Test for a valid filesystem 'MB' limit
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if (( FSLIMIT >= 0 && FSLIMIT < FSSIZE ))
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then
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if (( FSMB_FREE < FSLIMIT ))
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then
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return 1 # Found out of limit
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# using MB Free method
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else
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return 3 # Found OK
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fi
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else
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$ECHO "\nERROR: Invalid filesystem MAX for\
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$FSMOUNT - $FSLIMIT"
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$ECHO " Exceptions file value must be less\
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than or"
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$ECHO " equal to the size of the filesystem\
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measured"
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$ECHO " in 1024 bytes\n"
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fi
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else
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$ECHO "\nERROR: Null value specified in exceptions\
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file"
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$ECHO " for the $FSMOUNT mount point.\n"
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fi
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;;
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PC) # Use Filesystem %Used Method
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# Strip out the % sign if it exists
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PC_USED=$($ECHO $PC_USED | sed s/\%//g)
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# Test for blank and null values
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if [[ ! -z "$FSLIMIT" && "$FSLIMIT" != '' ]]
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then
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# Test for a valid percentage, i.e. 0-100
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if (( FSLIMIT >= 0 && FSLIMIT <= 100 ))
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then
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if (( $PC_USED > $FSLIMIT ))
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then
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return 2 # Found exceeded by % Used method
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else
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return 3 # Found OK
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fi
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else
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$ECHO "\nERROR: Invalid percentage for $FSMOUNT -\
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$FSLIMIT"
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$ECHO " Exceptions file values must be"
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$ECHO " between 0 and 100%\n"
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fi
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else
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$ECHO "\nERROR: Null value specified in exceptions\
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file"
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$ECHO " for the $FSMOUNT mount point.\n"
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fi
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;;
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N) # Method Not Specified - Use Script Defaults
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if (( FSSIZE >= FSTRIGGER ))
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then # This is a "large" filesystem
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if (( FSMB_FREE < MIN_MB_FREE ))
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then
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return 1 # Found out of limit
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# using MB Free method
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else
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return 3 # Found OK
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fi
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else # This is a standard filesystem
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PC_USED=$($ECHO $PC_USED | sed s/\%//g) # Remove %
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FSLIMIT=$($ECHO $FSLIMIT | sed s/\%//g) # Remove %
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if (( PC_USED > FSLIMIT ))
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then
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return 2 # Found exceeded by % Used method
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else
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return 3 # Found OK
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fi
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fi
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;;
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esac
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fi
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fi
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done < $DATA_EXCEPTIONS # Feed the loop from the bottom!!!
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return 4 # Not found in $EXCEPTIONS file
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}
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####################################
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function display_output
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{
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if [[ -s $OUTFILE ]]
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then
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$ECHO "\nFull Filesystem(s) on $THISHOST\n"
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cat $OUTFILE
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print
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fi
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}
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####################################
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function load_EXCEPTIONS_data
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{
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# Ignore any line that begins with a pound sign, #
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# and omit all blank lines
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cat $EXCEPTIONS | grep -v "^#" | sed /^$/d > $DATA_EXCEPTIONS
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}
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####################################
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function load_AIX_FS_data
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{
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df -k | tail +2 | egrep -v "/dev/cd[0-9]|/proc" \
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| awk '{print $1, $2, $3, $4, $7}' > $WORKFILE
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}
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####################################
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function load_HP_UX_FS_data
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{
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bdf | tail +2 | egrep -v "/cdrom" \
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| awk '{print $1, $2, $4, $5, $6}' > $WORKFILE
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}
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####################################
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function load_LINUX_FS_data
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{
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df -k | tail -n +2 | egrep -v "/cdrom"\
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| awk '{print $1, $2, $4, $5, $6}' > $WORKFILE
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}
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####################################
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function load_OpenBSD_FS_data
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{
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df -k | tail +2 | egrep -v "/mnt/cdrom"\
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| awk '{print $1, $2, $4, $5, $6}' > $WORKFILE
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}
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####################################
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function load_Solaris_FS_data
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{
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df -k | tail +2 | egrep -v "/dev/fd|/etc/mnttab|/proc"\
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| awk '{print $1, $2, $4, $5, $6}' > $WORKFILE
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}
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####################################
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######### START OF MAIN ############
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####################################
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# Query the operating system to find the Unix flavor, then
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# load the correct filesystem data for the resident OS
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case $(get_OS_info) in
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AIX) # Load filesystem data for AIX
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load_AIX_FS_data
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;;
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HP-UX) # Load filesystem data for HP-UX
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load_HP_UX_FS_data
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;;
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LINUX) # Load filesystem data for Linux
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load_LINUX_FS_data
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;;
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OPENBSD) # Load filesystem data for OpenBSD
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load_OpenBSD_FS_data
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;;
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SUNOS) # Load filesystem data for Solaris
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load_Solaris_FS_data
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;;
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*) # Unsupported in script
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$ECHO "\nUnsupported Operating System for this Script...EXITING\n"
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exit 1
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esac
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# Do we have a nonzero size $EXCEPTIONS file?
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if [[ -s $EXCEPTIONS ]]
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then # Found a nonempty $EXCEPTIONS file
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load_EXCEPTIONS_data
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EXCEP_FILE="Y"
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fi
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while read FSDEVICE FSSIZE FSMB_FREE PC_USED FSMOUNT
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do
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if [[ $EXCEP_FILE = "Y" ]]
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then
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check_exceptions
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CE_RC="$?" # Check Exceptions Return Code (CE_RC)
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case $CE_RC in
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1) # Found exceeded in exceptions file by MB Method
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(( FS_FREE_OUT = FSMB_FREE / 1000 ))
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$ECHO "$FSDEVICE mounted on $FSMOUNT has ${FS_FREE_OUT}MB Free" >> $OUTFILE
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;;
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2) # Found exceeded in exceptions file by %Used method
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$ECHO "$FSDEVICE mount on $FSMOUNT is ${PC_USED}%" \
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>> $OUTFILE
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;;
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3) # Found OK in exceptions file
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: # NO-OP Do Nothing. A ':' is a no-op!
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;;
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4) # Not found in exceptions file - Use Default Triggers
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if (( FSSIZE >= FSTRIGGER ))
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then # This is a "large" filesystem
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FSMB_FREE=$($ECHO $FSMB_FREE | sed s/MB//g) # Remove the "MB"
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if (( FSMB_FREE < MIN_MB_FREE ))
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then
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(( FS_FREE_OUT = FSMB_FREE / 1000 ))
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$ECHO "$FSDEVICE mounted on $FSMOUNT has {FS_FREE_OUT}MB Free" >> $OUTFILE
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fi
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else # This is a standard filesystem
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PC_USED=$($ECHO $PC_USED | sed s/\%//g)
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MAX_PERCENT=$($ECHO $MAX_PERCENT | sed s/\%//g)
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if (( PC_USED > MAX_PERCENT ))
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then
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$ECHO "$FSDEVICE mount on $FSMOUNT is ${PC_USED}%" \
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>> $OUTFILE
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fi
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fi
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;;
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esac
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else # NO $EXCEPTIONS FILE USE DEFAULT TRIGGER VALUES
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if (( FSSIZE >= FSTRIGGER ))
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then # This is a "large" filesystem - Use MB Free Method
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FSMB_FREE=$($ECHO $FSMB_FREE | sed s/MB//g) # Remove the 'MB'
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if (( FSMB_FREE < MIN_MB_FREE ))
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then
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(( FS_FREE_OUT = FSMB_FREE / 1000 ))
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$ECHO "$FSDEVICE mounted on $FSMOUNT has ${FS_FREE_OUT}MB Free" \
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>> $OUTFILE
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fi
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else # This is a standard filesystem - Use % Used Method
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PC_USED=$($ECHO $PC_USED | sed s/\%//g)
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MAX_PERCENT=$($ECHO $MAX_PERCENT | sed s/\%//g)
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if (( PC_USED > MAX_PERCENT ))
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then
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$ECHO "$FSDEVICE mount on $FSMOUNT is ${PC_USED}%" \
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>> $OUTFILE
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fi
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fi
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fi
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done < $WORKFILE # Feed the while loop from the bottom!!!!!
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display_output
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# End of Script
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Reference in New Issue
Block a user