initial commit
This commit is contained in:
Fabio Scotto di Santolo
217
chapter20/stale_VG_PV_LV_PP_mon.ksh
Executable file
217
chapter20/stale_VG_PV_LV_PP_mon.ksh
Executable file
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#!/usr/bin/ksh
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#
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# SCRIPT: stale_VG_PV_LV_PP_mon.ksh
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#
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# AUTHOR: Randy Michael
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# DATE: 01/29/2007
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# REV: 1.2.P
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#
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# PLATFORM: AIX only
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#
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# PURPOSE: This shell script is used to query the system for stale PPs.
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# The method queries the system for all of the currently vaied-on
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# volume groups and then builds a list of the PVs to query. If a PV
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# query detects any stale partitions notification is sent to the
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# screen. Each step in the process has user notification
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#
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# REVISION LIST:
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#
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#
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# set -x # Uncomment to debug this shell script
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# set -n # Uncomment to check command syntax without any execution
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#
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# EXIT CODES: 0 ==> Normal execution or no stale PP were found
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# 1 ==> Trap EXIT
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# 2 ==> Auto resyncing failed
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#
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####################################################
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######### DEFINE VARIABLES HERE ####################
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####################################################
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case $(uname) in
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AIX) : # Correct OS
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# NOTE: a (:) colon is a no-op in Korn shell
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;;
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*) echo "\nERROR: This shell script will only work on AIX"
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echo "...EXITING...\n"
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exit 99
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;;
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esac
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ATTEMPT_RESYNC=FALSE # Flag to enable auto resync, "TRUE" will resync
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LOGFILE="/tmp/stale_PP_log" # Stale PP logfile
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THIS_HOST=$(hostname) # Hostname of this machine
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STALE_PP_COUNT=0 # Initialize to zero
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STALE_PV_COUNT=0 # Initialize to zero
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HDISK_LIST= # Initialize to NULL
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INACTIVE_PP_LIST= # Initialize to NULL
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STALE_PV_LIST= # Initialize to NULL
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STALE_LV_LIST= # Initialize to NULL
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STALE_VG_LIST= # Initialize to NULL
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RESYNC_LV_LIST= # Initialize to NULL
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PV_LIST= # Initialize to NULL
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#######################################
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#### INITIALIZE THE LOG FILE ####
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>$LOGFILE # Initialize the log file to empty
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date >> $LOGFILE # Date the log file was created
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echo "\n$THIS_HOST \n" >> $LOGFILE # Host name for this report
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#### DEFINE FUNCTIONS HERE ############
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# Trap Exit function
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function trap_exit
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{
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echo "\n\t...EXITING on a TRAPPED signal...\n"
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}
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#######################################
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# Set a trap...
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trap 'trap_exit; exit 1' 1 2 3 5 15
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#######################################
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######### BEGINNING OF MAIN ###########
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#######################################
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# Inform the user at each step
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# Loop through each currently varied-on VG and query VG for stale PVs.
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# For any VG that has at least one stale PV we then query the VG
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# for the list of associated PV and build the $PV_LIST
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echo "\nSearching each Volume Group for stale Physical Volumes...\c" \
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| tee -a $LOGFILE
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# Search each VG for stale PVs, then build a list of VGs and PVs
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# that have stale disk partitions
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for VG in $(lsvg -o)
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do
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NUM_STALE_PV=$(lsvg $VG | grep 'STALE PVs:' | awk '{print $3}')
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if ((NUM_STALE_PV > 0))
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then
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STALE_VG_LIST="$STALE_VG_LIST $VG"
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PV_LIST="$PV_LIST $(lsvg -p $VG | tail +3 | awk '{print $1}')"
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((STALE_PV_COUNT = $STALE_PV_COUNT + 1))
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fi
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done
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# Test to see if any stale PVs were found, if not then
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# exit with return code 0
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if ((STALE_PV_COUNT == 0))
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then
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echo "\nNo Stale Disk Mirrors Found...EXITING...\n" | tee -a $LOGFILE
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exit 0
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else
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echo "\nStale Disk Mirrors Found!...Searching each hdisk for stale \
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PPs...\c" | tee -a $LOGFILE
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fi
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# Now we have a list of PVs from every VG that reported stale PVs
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# The next step is to query each PV to make sure each PV is in
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# and "active" state and then query each PV for stale PPs.
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# If a PV is found to be inactive then we will not query
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# the PV for stale partitions, but move on to the next PV in
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# the $PV_LIST.
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for HDISK in $(echo $PV_LIST)
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do
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PV_STATE=$(lspv $HDISK | grep 'PV STATE:' | awk '{print $3}')
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if [[ $PV_STATE != 'active' ]]
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then
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INACTIVE_PV_LIST="$INACTIVE_PV_LIST $HDISK"
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fi
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if ! $(echo $INACTIVE_PV_LIST | grep $HDISK) >/dev/null 2>&1
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then
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NUM_STALE_PP=$(lspv $HDISK | grep 'STALE PARTITIONS:' \
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| awk '{print $3}')
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if ((NUM_STALE_PP > 0))
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then
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STALE_PV_LIST="$STALE_PV_LIST $HDISK"
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((STALE_PP_COUNT = $STALE_PP_COUNT + 1))
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fi
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fi
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done
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# Now we have the list of PVs that contain the stale PPs.
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# Next we want to get a list of all of the LVs affected.
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echo "\nSearching each disk with stale PPs for associated LVs\c" \
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| tee -a $LOGFILE
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for PV in $(echo $STALE_PV_LIST)
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do
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STALE_LV_LIST="$STALE_LV_LIST $(lspv -l $PV | tail +3 \
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| awk '{print $1}')"
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done
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# Using the STALE_LV_LIST variable list we want to query
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# each LV to find which ones need to be resynced
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echo "\nSearch each LV for stale partitions to build a resync LV list\c" \
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| tee -a $LOGFILE
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for LV in $(echo $STALE_LV_LIST)
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do
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LV_NUM_STALE_PP=$(lslv $LV | grep "STALE PPs:" | awk '{print $3}')
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(($LV_NUM_STALE_PP == 0)) & RESYNC_LV_LIST="$RESYNC_LV_LIST $LV"
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done
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# If any inactive PV were found we need to inform the user
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# of each inactive PV
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# Check for a NULL variable
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if [[ -n $INACTIVE_PV_LIST && $INACTIVE_PV_LIST != '' ]]
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then
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for PV in $(echo $INACTIVE_PV_LIST)
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do
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echo "\nWARNING: Inactive Physical Volume Found:" | tee -a $LOGFILE
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echo "\n$PV is currently inactive:\n" | tee -a $LOGFILE
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echo "\nThis script is not suitable to to correct this problem..." \
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| tee -a $LOGFILE
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echo " ...CALL IBM SUPPORT ABOUT ${PV}..." | tee -a $LOGFILE
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done
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fi
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echo "\nStale Partitions have been found on at least one disk!" \
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| tee -a $LOGFILE
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echo "\nThe following Volume Group(s) have stale PVs:\n" \
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| tee -a $LOGFILE
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echo $STALE_VG_LIST | tee -a $LOGFILE
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echo "\nThe stale disk(s) involved include the following:\n" \
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| tee -a $LOGFILE
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echo $STALE_PV_LIST | tee -a $LOGFILE
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echo "\nThe following Logical Volumes need to be resynced:\n" \
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| tee -a $LOGFILE
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echo $RESYNC_LV_LIST | tee -a $LOGFILE
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if [[ $ATTEMPT_RESYNC = "TRUE" ]]
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then
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echo "\nAttempting to resync the LVs on $RESYNC_PV_LIST ...\n" \
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| tee -a $LOGFILE
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syncvg -l $RESYNC_LV_LIST | tee -a $LOGFILE 2>&1
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if (( $? == 0))
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then
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echo "\nResyncing all of the LVs SUCCESSFUL...EXITING..." \
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| tee -a $LOGFILE
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else
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echo "\nResyncing FAILED...EXITING...\n" | tee -a $LOGFILE
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exit 2
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fi
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else
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echo "\nAuto resync is not enabled...set to TRUE to automatically \
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resync\n" | tee -a $LOGFILE
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echo "\n\t...EXITING...\n" | tee -a $LOGFILE
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fi
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echo "\nThe log file is: $LOGFILE\n"
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