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chapter17/fs_mon_AIX_excep.ksh

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+#!/usr/bin/ksh
+#
+# SCRIPT: fs_mon_AIX_excep.ksh
+# AUTHOR: Randy Michael
+# DATE: 08-22-2007
+# REV: 2.1.P
+# 
+# PURPOSE: This script is used to monitor for full filesystems,
+#     which is defined as "exceeding" the FSMAX value.
+#     A message is displayed for all "full" filesystems.
+#
+# PLATFORM: AIX
+#
+# REV LIST:
+#         08-23-2007 - Randy Michael
+#         Added code to override the default FSMAX script threshold
+#         using an "exceptions" file, defined by the $EXCEPTIONS
+#         variable, that list /mount_point and NEW_MAX%
+#
+# set -n # Uncomment to check syntax without any execution
+# set -x # Uncomment to debug this script
+#
+##### DEFINE FILES AND VARIABLES HERE ####  
+
+FSMAX="85"              # Max. FS percentage value
+
+WORKFILE="/tmp/df.work" # Holds filesystem data
+>$WORKFILE              # Initialize to empty
+OUTFILE="/tmp/df.outfile" # Output display file
+>$OUTFILE		# Initialize to empty
+BINDIR="/usr/local/bin" # Local bin directory
+THISHOST=`hostname`	# Hostname of this machine
+
+EXCEPTIONS="${BINDIR}/exceptions" # Overrides $FSMAX
+DATA_EXCEPTIONS="/tmp/dfdata.out" # Exceptions file w/o #, comments
+
+####### DEFINE FUNCTIONS HERE #####
+
+function load_EXCEPTIONS_file
+{
+# Ignore any line that begins with a pound sign, #
+# and omit all blank lines
+
+cat $EXCEPTIONS | grep -v "^#" | sed /^$/d > $DATA_EXCEPTIONS
+}
+
+###################################
+
+function check_exceptions
+{
+# set -x # Uncomment to debug this function
+
+while read FSNAME NEW_MAX # Feeding Ddata from Bottom of Loop!!!
+do
+        if [[ $FSNAME = $FSMOUNT ]] # Correct /mount_point?
+        then    # Get rid of the % sign, if it exists!
+                NEW_MAX=$(echo $NEW_MAX | sed s/\%//g)
+
+                if [ $FSVALUE -gt $NEW_MAX ]
+                then  # Over Limit...Return a "0", zero
+                    return 0 # FOUND MAX OUT - Return 0
+                fi
+        fi
+
+done < $DATA_EXCEPTIONS # Feed from the bottom of the loop!!
+
+return 1 # Not found in File
+}
+
+####################################
+######## START OF MAIN #############
+####################################
+
+# If there is an exceptions file...load it...
+
+[[ -s $EXCEPTIONS ]] && load_EXCEPTIONS_file
+
+# Get the data of interest by stripping out /dev/cd#, 
+# /proc rows and keeping columns 1, 4 and 7
+
+df -k | tail +2 | egrep -v '/dev/cd[0-9]|/proc' \
+   | awk '{print $1, $4, $7}' > $WORKFILE
+
+# Loop through each line of the file and compare column 2
+
+while read FSDEVICE FSVALUE FSMOUNT
+do   # Feeding the while loop from the BOTTOM!!
+     
+     # Strip out the % sign if it exists
+     FSVALUE=$(echo $FSVALUE | sed s/\%//g) # Remove the % sign
+     if [[ -s $EXCEPTIONS ]] # Do we have a non-empty file?
+     then # Found it!
+
+        # Look for the current $FSMOUNT value in the file
+        # using the check_exceptions function defined above.
+
+        check_exceptions
+        RC=$? # Get the return code from the function
+        if [ $RC -eq 0 ] # Found Exceeded in Exceptions File!!
+        then
+            echo "$FSDEVICE mount on $FSMOUNT is ${FSVALUE}%" \
+                  >> $OUTFILE
+        elif [ $RC -eq 1 ] # Not found in exceptions, use defaults
+        then
+            if [ $FSVALUE -gt $FSMAX ] # Use Script Default
+            then
+                echo "$FSDEVICE mount on $FSMOUNT is ${FSVALUE}%" \
+                      >> $OUTFILE
+            fi
+        fi
+     else # No exceptions file use the script default
+             if [ $FSVALUE -gt $FSMAX ] # Use Script Default
+             then
+                  echo "$FSDEVICE mount on $FSMOUNT is ${FSVALUE}%" \
+                        >> $OUTFILE
+             fi
+     fi
+done < $WORKFILE # Feed the while loop from the bottom...
+
+# Display output if anything is exceeded...
+
+if [[ -s $OUTFILE ]]
+then
+      echo "\nFull Filesystem(s) on $THISHOST\n"
+      cat $OUTFILE
+      print
+fi