how to clear CRS/RAC for 10/11g



How to clear  CRS/RAC for 10/11g    

#!/bin/sh

#=============================================================================#
#                                                                             #
#      This script is used to fully delete Software of CRS/RAC for 10/11g     #
#            Delete CRS/RAC SW, CRS related socket/temp/init files            #
#                   And change back ownership of OCR and VF                   #
#                                                                             #        
#                Right now, it is only tested on AIX and Linux                #
#                                                                             # 
#                           [email protected]                              #
#=============================================================================#

# ------------------------- Change Logs --------------------
#                                                          
#  12/13/2007 - Creation and Test for AIX Platform                     
#  01/03/2008 - Add Platform Variables for Linux/HP/SUN                    
#  01/05/2008 - Change and Test for Linux Platform                            
#  01/07/2008 - Delete SW on all cluster nodes if possible 
#                                                          
# ----------------------------- End ------------------------

# System Dependent Variables
OS=`/bin/uname`;
HOST=`/bin/hostname`;

case $OS in
Linux)
  INST_IN="/etc/oraInst.loc"
  ORA_TAB="/etc/oratab"
  ORA_LOC="/etc/oracle"
  TEMP="/tmp"
  CONF="/etc/init.d"
  LOCALBIN="/usr/local/bin"
 
  ID="/usr/bin/id "
  PSEF="/bin/ps -ef "
  AWK="/bin/awk "
  GREP="/bin/grep "
  EGREP="/bin/egrep "
  CAT="/bin/cat "
  CUT="/bin/cut "
  CHOWN="/bin/chown "
  LS="/bin/ls "
  ECHO="/bin/echo "
  RMRF="/bin/rm -rf "
  MV="/bin/mv "
  DD="/bin/dd "
  RSH="/usr/bin/rsh "
  SSH="/usr/bin/ssh "
  ;;
AIX)  
  INST_IN="/etc/oraInst.loc"
  ORA_TAB="/etc/oratab"
  ORA_LOC="/etc/oracle"
  TEMP="/tmp"
  CONF="/etc"
  LOCALBIN="/usr/local/bin"

  ID="/bin/id "
  PSEF="/bin/ps -ef "
  AWK="/bin/awk "
  GREP="/bin/grep "
  EGREP="/bin/egrep "
  CAT="/bin/cat "
  CUT="/bin/cut "
  CHOWN="/bin/chown "
  LS="/bin/ls "
  ECHO="/bin/echo "
  RMRF="/bin/rm -rf "
  MV="/bin/mv "
  DD="/bin/dd "
  RSH="/bin/rsh "
  SSH="/bin/ssh "
  RMITAB="rmitab "
  ;;
SunOS)
  INST_IN="/var/opt/oracle/oraInst.loc"
  ORA_TAB="/var/opt/oracle/oratab"
  ORA_LOC="/var/opt/oracle"
  TEMP="/tmp"
  CONF="/etc/init.d"
  LOCALBIN="/usr/local/bin"

  ID="/usr/bin/id "
  PSEF="/usr/bin/ps -ef "
  AWK="/usr/bin/awk "
  GREP="/usr/bin/grep "
  EGREP="/usr/bin/egrep "
  CAT="/usr/bin/cat "
  CUT="/usr/bin/cut "
  CHOWN="/usr/bin/chown "
  LS="/usr/bin/ls "
  ECHO="/usr/bin/echo "
  RMRF="/usr/bin/rm -rf "
  MV="/usr/bin/mv "
  DD="/usr/bin/dd "
  RSH="/usr/bin/rsh "
  SSH="/usr/bin/ssh "
  ;;
HP-UX) 
  INST_IN="/var/opt/oracle/oraInst.loc"
  ORA_TAB="/var/opt/oracle/oratab"
  ORA_LOC="/var/opt/oracle" 
  TEMP="/tmp"
  CONF="/etc/init.d"
  LOCALBIN="/usr/local/bin"

  ID="/usr/bin/id "
  PSEF="/usr/bin/ps -ef "
  AWK="/usr/bin/awk "
  GREP="/usr/bin/grep "
  EGREP="/usr/bin/egrep "
  CAT="/usr/bin/cat "
  CUT="/usr/bin/cut "
  CHOWN="/usr/bin/chown "
  LS="/usr/bin/ls "
  ECHO="/usr/bin/echo "
  RMRF="/usr/bin/rm -rf "
  MV="/usr/bin/mv "
  DD="/usr/bin/dd "
  RSH="/usr/bin/rsh "
  SSH="/usr/bin/ssh "
  ;;
*)
  echo
  echo "Unknown OS system";
  echo
  exit 1;
  ;;
esac

#####################
#exit 0;
#####################

#================================ Debug =======================================
# Open following variabels for debug usage
#
#  DD=$ECHO
#  MV=$ECHO
#  RMRF=$ECHO
#  CHOWN=$ECHO
#  RMITAB=$ECHO
#
#==============================================================================

# Function Caller Permission Check
USER=`$ID |$AWK -F= '{print $2}'|$AWK -F\( '{print $1}'`

if [ "X$USER" != "X0" ];
then
  $ECHO "You need to run this script as root";
  echo
  exit 1
fi

# CRS/RAC Software Deletion Confirmation
echo
echo "========================================================================="
echo "           Will delete CRS/RAC ....? Input your selection(yes|no)        "
echo "========================================================================="
echo

read INPUT
if [ "X$INPUT" != "Xyes" ];
then
  $ECHO "Deletion Refused. Quit!";
  echo
  exit 1;
fi

# Remote Shell Check
if $RSH $HOST $ECHO 2> /dev/null;
then
  RH=$RSH
elif $SSH $HOST $ECHO 2> /dev/null;
then
  RH=$SSH
else
  echo
  $ECHO "Remote SHELL is not configured";
  $ECHO "Delete Local CRS/RAC Software only";
  echo
fi

echo
echo "Start to delete ...";
echo

###########
#exit 0;
###########

# Get CRS_HOME and ORACLE_HOMEs
echo "Start to Get OraInventory Location ...";

if [ -f "$INST_IN" ];
then
  ORAINST=`$CAT $INST_IN|$GREP "inventory_loc"|$CUT -d "=" -f2`;
  $ECHO "Oracle Inventory is at \"$ORAINST\"";

  if [  "X$ORAINST" != "X" -a -d "$ORAINST" ];
  then
    O_USER=`$LS -ld $ORAINST|$AWK '{print \$3}'`;
    [ -n "$1" ] && $ECHO "Oracle User: $O_USER";

    O_GROUP=`$LS -ld $ORAINST|$AWK '{print \$4}'`;
    [ -n "$1" ] && $ECHO "Oracle Group: $O_GROUP";

    if [ -f "$ORAINST/ContentsXML/inventory.xml" ];
    then
      ORACRS=`$CAT $ORAINST/ContentsXML/inventory.xml|$GREP "IDX=\"1\""|$CUT -d '"' -f4`;
      ORAHOME=`$CAT $ORAINST/ContentsXML/inventory.xml|$GREP "IDX=\"2\""|$CUT -d '"' -f4`;
      ORAHOME2=`$CAT $ORAINST/ContentsXML/inventory.xml|$GREP "IDX=\"3\""|$CUT -d '"' -f4`;
    fi
  fi
fi
echo

if [ "X$ORACRS" = "X" ];
then
  $ECHO "Can not get CRS directory from Oracle Inventory";
  $ECHO "Quit!";
  exit 1;
fi
 
# Get Cluster Node Information
NODE_LIST=`$ORACRS/bin/olsnodes`;
if [ "X$NODE_LIST" = "X" ];
then
  echo
  $ECHO "Can not get cluster nodes information";
  $ECHO "Quit!"
  exit 1
fi

echo
$ECHO "CRS is installed at \"$ORACRS\"";
echo
$ECHO "Start to stop CRS Stack ...";
echo

# Get CSS Vote Files and Change back their Ownerships
for CSSVD in `$ORACRS/bin/crsctl query css votedisk`;
do
  if [ `$ECHO $CSSVD|$EGREP '^\/'` ]; then
    [ -n "$1" ] && $ECHO "Voting File: $CSSVD";
    if [ "X$RH" = "X" ];
    then
      $CHOWN $O_USER:$O_GROUP $CSSVD;
    else
      for node in $NODE_LIST;
      do
        $RH $node "$CHOWN $O_USER:$O_GROUP $CSSVD;";
      done
    fi
  fi
done

# Delete CRS/RAC Installation Temp Files
echo "Delete CRS Installation Temp Files"
if [ "X$RH" = "X" ];
then
  TempFile=`$LS $TEMP|$GREP OraInstall`
  if [ "X$TempFile" != "X" ];
  then
    for I in $TempFile;
    do
      [ -n "$1" ] && $ECHO "Delete Installation Temp File: $TEMP/$I";
      $RMRF $TEMP/$I
    done
  fi
else
  for node in $NODE_LIST;
  do
    TempFile=`$RH $node "$LS $TEMP|$GREP OraInstall"`
    if [ "X$TempFile" != "X" ];
    then
      for I in $TempFile;
      do
        [ -n "$1" ] && $ECHO "Delete Temp File on \"$node: $TEMP/$I\"";
        $RH $node "$RMRF $TEMP/$I"
      done
    fi
  done
fi
echo

###########
#exit 0;
###########

# Stop CRS Stack First
if [ "X$RH" != "X" ];
then
  for node in $NODE_LIST;
  do 
    $ECHO "Stop CRS stack on node \"$node\"";
    if [ "X$node" != "X$HOST" ];
    then
      $RH $node "$ORACRS/bin/crsctl stop crs"
      sleep 10
      $RH $node "$PSEF|$GREP -v grep|$EGREP 'c[s|r]sd.bin'" > /tmp/ocssd_ps
    else
      $ORACRS/bin/crsctl stop crs
      sleep 2
      $PSEF|$GREP -v grep|$GREP 'c[s|r]sd.bin' > /tmp/ocssd_ps 
    fi

    PROCESS=`$CAT /tmp/ocssd_ps`
    if [ "X$PROCESS" != "X" ];
    then
      echo
      $ECHO "Stop CRS stack failed on node \"$node\"";
      echo
      $RMRF /tmp/ocssd_ps
      exit 1;
    fi
  done
else
  $ORACRS/bin/crsctl stop crs
  sleep 2
  $PSEF|$GREP -v grep|$GREP 'ocssd.bin|crsd.bin' > /tmp/ocssd_ps
  PROCESS=`$CAT /tmp/ocssd_ps`
  if [ "X$PROCESS" != "X" ];
  then
    echo
    $ECHO "Stop CRS stack failed on node \"$HOST\"";
    echo
    $RMRF /tmp/.ocssd
    exit 1;
  fi
fi

echo "CRS Stack Stopped";
echo

###########
#exit 0
###########

# Get OCR Disks, Change back their Ownerships
if [ -f "$ORA_LOC/ocr.loc" ];
then
  BASEOCR=`$CAT "$ORA_LOC/ocr.loc"|$GREP 'ocrconfig_loc'|$CUT -d '=' -f2`;
  MIRROCR=`$CAT "$ORA_LOC/ocr.loc"|$GREP 'ocrmirrorconfig_loc'|$CUT -d '=' -f2`;
  if [ "X$BASEOCR" != "X" ];
  then
    [ -n "$1" ] && $ECHO "Base OCR: $BASEOCR";
    if [ "X$RH" = "X" ];
    then
      $CHOWN $O_USER:$O_GROUP $BASEOCR;
    else
      for node in $NODE_LIST;
      do
        $RH $node "$CHOWN $O_USER:$O_GROUP $BASEOCR";
      done
    fi
   
    if [ "X$MIRROCR" != "X" ];
    then
      [ -n "$1" ] && $ECHO "Mirror OCR: $MIRROCR";
      if [ "X$RH" = "X" ];
      then
        $CHOWN $O_USER:$O_GROUP $MIRROCR;
      else
        for node in $NODE_LIST;
        do
          $RH $node "$CHOWN $O_USER:$O_GROUP $MIRROCR";
        done
      fi
    fi
  fi
fi

##########
#exit 0;
##########

# Delete Oralce Inventory
echo  "Remove Oracle Inventory $ORAINST ..."
if [ -d $ORAINST ];
then
  if [ "X$RH" != "X" ];
  then
    for node in $NODE_LIST;
    do
      $ECHO "Delete Oracle Inventory on \"$node\"";
      $RH $node "$RMRF $ORAINST; $RMRF $INST_IN";
      echo
    done
  else
    $RMRF $ORAINST
    $RMRF $INST_IN
  fi
fi
echo

# Delete CRS Software
echo "Remove CRS Software ..."
if [ -d "$ORACRS" ];
then
  if [ "X$RH" != "X" ];
  then
    for node in $NODE_LIST;
    do
      $ECHO "Delete CRS Software on \"$node\"";
      $RH $node "$RMRF $ORACRS"
      echo
    done
  else
    $RMRF $ORACRS
  fi
fi
echo

# Get CRS related Init Files
L_EVMD=`$CAT /etc/inittab|$GREP "init.evmd"|$CUT -d ":" -f1|$GREP -v "#"`;
L_CSSD=`$CAT /etc/inittab|$GREP "init.cssd"|$CUT -d ":" -f1|$GREP -v "#"`;
L_CRSD=`$CAT /etc/inittab|$GREP "init.crsd"|$CUT -d ":" -f1|$GREP -v "#"`;

# Use "rmitab" to remove these items from inittab file on AIX
if [ "X$OS" = "XAIX" ];
then
  $ECHO "Remove CRS related items from /etc/inittab file ...";
  if [ "X$RH" = "X" ];
  then
    [ -n "$L_EVMD" ] && $RMITAB $L_EVMD;
    [ -n "$L_CSSD" ] && $RMITAB $L_CSSD;
    [ -n "$L_CRSD" ] && $RMITAB $L_CRSD;
  else
    for node in $NODE_LIST;
    do
      $RH $node "[ -n \"$L_EVMD\" ] && $RMITAB $L_EVMD; \
                 [ -n \"$L_CSSD\" ] && $RMITAB $L_CSSD; \
                 [ -n \"$L_CRSD\" ] && $RMITAB $L_CRSD; "
    done
  fi
  echo
fi

#add by ricky
sed '/init.evmd/,/init.crsd/d' /etc/inittab > /tmp/inittab.tmp
mv /etc/inittab /etc/inittab.org
mv /tmp/inittab.tmp /etc/inittab

# Remove CRS Autostart Init Files
echo "Remove CRS related init files ...";
if [ "X$RH" = "X" ];
then
  [ -f "$CONF/init.crsd" ] && $RMRF $CONF/init.crsd ;
  [ -f "$CONF/init.crs"  ] && $RMRF $CONF/init.crs  ;
  [ -f "$CONF/init.cssd" ] && $RMRF $CONF/init.cssd ;
  [ -f "$CONF/init.evmd" ] && $RMRF $CONF/init.evmd ;
else
  for node in $NODE_LIST;
  do
    $RH $node "[ -f \"$CONF/init.crsd\" ] && $RMRF $CONF/init.crsd; \
               [ -f \"$CONF/init.crs\"  ] && $RMRF $CONF/init.crs ; \
               [ -f \"$CONF/init.cssd\" ] && $RMRF $CONF/init.cssd; \
               [ -f \"$CONF/init.evmd\" ] && $RMRF $CONF/init.evmd; "
  done
fi
echo

# Backup Platform depended Cluster Libraries
#if [ "X$RH" = "X" ];
#then
#  [ -d /opt/ORCLcluster ] && $MV /opt/ORCLcluster /opt/ORCLbackup0
#else
#  for node in $NODE_LIST;
#  do
#    $RH $node "[ -d /opt/ORCLcluster ] && $MV /opt/ORCLcluster /opt/ORCLbackup0"
#  done
#fi

# Remove CSS/CRS Socket Files
echo "Remove CSS/CRS socket files ...";
if [ "X$RH" = "X" ];
then
  [ -d /usr/tmp/.oracle ] && $RMRF /usr/tmp/.oracle ;
  [ -d /tmp/.oracle ]     && $RMRF /tmp/.oracle ;
  [ -d /var/tmp/.oracle ] && $RMRF /var/tmp/.oracle ;
else
  for node in $NODE_LIST;
  do
    $RH $node "[ -d /usr/tmp/.oracle ] && $RMRF /usr/tmp/.oracle; \
               [ -d /tmp/.oracle ]     && $RMRF /tmp/.oracle;     \
               [ -d /var/tmp/.oracle ] && $RMRF /var/tmp/.oracle; "
  done
fi
echo

# Delete oratab and other files
echo "Remove other oracle related files ..."
if [ "X$RH" = "X" ];
then
  [ -f "$ORA_TAB" ] && $RMRF $ORA_TAB;
  [ -d "$ORA_LOC" ] && $RMRF $ORA_LOC;
  [ -f "$LOCALBIN/coraenv" ] && $RMRF $LOCALBIN/coraenv ;
  [ -f "$LOCALBIN/oraenv" ]  && $RMRF $LOCALBIN/oraenv ;
  [ -f "$LOCALBIN/dbhome" ]  && $RMRF $LOCALBIN/dbhome ;
else
  for node in $NODE_LIST;
  do
    $RH $node "[ -f \"$ORA_TAB\" ] && $RMRF $ORA_TAB; \
               [ -d \"$ORA_LOC\" ] && $RMRF $ORA_LOC; \
               [ -f \"$LOCALBIN/coraenv\" ] && $RMRF $LOCALBIN/coraenv; \
               [ -f \"$LOCALBIN/oraenv\" ]  && $RMRF $LOCALBIN/oraenv ; \
               [ -f \"$LOCALBIN/dbhome\" ]  && $RMRF $LOCALBIN/dbhome ; "
  done
fi
echo

# Clear OCR Files if CRS SW (No RAC) deleted on all cluster nodes
if [ "X$ORAHOME" = "X" ];
then
  $ECHO "Oracle RAC does not installed, and CRS delete finished";
  echo
  if [ "X$BASEOCR" != "X" ];
  then
    if [ "X$RH" != "X" ];
    then
      $ECHO "Clear OCR BASE:    $BASEOCR";
      $DD if=/dev/zero of=$BASEOCR bs=1024k count=200
   
      if [ "X$MIRROCR" != "X" ];
      then
        $ECHO "Clear OCR MIRROR:  $MIRROCR";
        $DD if=/dev/zero of=$MIRROCR bs=1024k count=200
      fi
    fi
  else
    $ECHO "Do not forget to clear the OCR after deletion on the last node";
    [ -n "$BASEOCR" ] && $ECHO "BASE OCR:   $BASEOCR";
    [ -n "$MIRROCR" ] && $ECHO "MIRR OCR:   $MIRROCR";
  fi 
  echo
  exit 0
fi

# Delete RAC software
echo "ORACLE RAC installed at \"$ORAHOME\"";
echo
echo "Remove ORALCE RAC ...";

if [ -d "$ORAHOME" ];
then
  if [ "X$RH" != "X" ];
  then
    for node in $NODE_LIST;
    do
      $ECHO "Delete RAC Software on \"$node\"";
      $RH $node "$RMRF $ORAHOME"
      echo
    done
  else
    $RMRF $ORAHOME
  fi
 
  if [ -d "ORAHOME2" ];
  then
    echo
    $ECHO "Another ORACLE RAC installed at \"$ORAHOME2\"";
    if [ "X$RH" != "X" ];
    then
      for node in $NODE_LIST;
      do
        $ECHO "Removing from \"$node\"";
        $RH $node "$RMRF $ORAHOME2"
        echo
      done
    else
      $ECHO "Removing ..."
      $RMRF $ORAHOME2
    fi
  fi
fi
echo

echo "CRS/RAC Delete finished";
echo
echo

# Cleare the OCR Content after deletion
if [ "X$RH" != "X" ];
then
  $ECHO "Start clear the OCR device ...";
  if [ "X$BASEOCR" != "X" ];
  then
    $ECHO "Clear OCR BASE:    $BASEOCR";
    $DD if=/dev/zero of=$BASEOCR bs=1024k count=200
 
    if [ "X$MIRROCR" != "X" ];
    then
      $ECHO "Clear OCR MIRROR:  $MIRROCR";
      $DD if=/dev/zero of=$MIRROCR bs=1024k count=200
    fi
  fi
else
    $ECHO "Do not forget to clear the OCR after deletion of the last node"
    [ -n "$BASEOCR" ] && $ECHO "BASE OCR:   $BASEOCR";
    [ -n "$MIRROCR" ] && $ECHO "MIRR OCR:   $MIRROCR";
fi
echo 

# Can Add Directory Check Here

exit 0