scripts/lvm2_monitoring_init_red_hat.in

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2007-2009 Red Hat, Inc. All rights reserved.
   4 #
   5 # This copyrighted material is made available to anyone wishing to use,
   6 # modify, copy, or redistribute it subject to the terms and conditions
   7 # of the GNU General Public License v.2.
   8 #
   9 # You should have received a copy of the GNU General Public License
  10 # along with this program; if not, write to the Free Software Foundation,
  11 # Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  12 #
  13 # This file is part of LVM2.
  14 # It is required for the proper handling of failures of LVM2 mirror
  15 # devices that were created using the -m option of lvcreate.
  16 #
  17 #
  18 # chkconfig: 12345 02 99
  19 # description: Starts and stops dmeventd monitoring for lvm2
  20 #
  21 # For Red-Hat-based distributions such as Fedora, RHEL, CentOS.
  22 #
  23 ### BEGIN INIT INFO
  24 # Provides: lvm2-monitor
  25 # Required-Start: $local_fs
  26 # Required-Stop: $local_fs
  27 # Default-Start: 1 2 3 4 5
  28 # Default-Stop: 0 6
  29 # Short-Description: Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling
  30 ### END INIT INFO
  31
  32 . /etc/init.d/functions
  33
  34 DAEMON=lvm2-monitor
  35
  36 exec_prefix=@exec_prefix@
  37 sbindir=@sbindir@
  38
  39 VGCHANGE=${sbindir}/vgchange
  40 VGS=${sbindir}/vgs
  41
  42 LOCK_FILE="/var/lock/subsys/$DAEMON"
  43
  44 WARN=1
  45 export LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES=1
  46
  47 start()
  48 {
  49         ret=0
  50         # TODO do we want to separate out already active groups only?
  51         VGSLIST=`$VGS --noheadings -o name --config 'log{command_names=0 prefix="  "}' 2> /dev/null`
  52         for vg in $VGSLIST
  53         do
  54             action "Starting monitoring for VG $vg:" $VGCHANGE --monitor y --poll y --config 'log{command_names=0 prefix="  "}' $vg || ret=$?
  55         done
  56
  57         return $ret
  58 }
  59
  60
  61 stop()
  62 {
  63         ret=0
  64         # TODO do we want to separate out already active groups only?
  65         if test "$WARN" = "1"; then
  66            echo "Not stopping monitoring, this is a dangerous operation. Please use force-stop to override."
  67            return 1
  68         fi
  69         VGSLIST=`$VGS --noheadings -o name --config 'log{command_names=0 prefix="  "}' 2> /dev/null`
  70         for vg in $VGSLIST
  71         do
  72             action "Stopping monitoring for VG $vg:" $VGCHANGE --monitor n --config 'log{command_names=0 prefix="  "}' $vg || ret=$?
  73         done
  74         return $ret
  75 }
  76
  77 rtrn=1
  78
  79 # See how we were called.
  80 case "$1" in
  81   start)
  82         start
  83         rtrn=$?
  84         [ $rtrn = 0 ] && touch $LOCK_FILE
  85         ;;
  86
  87   force-stop)
  88         WARN=0
  89         stop
  90         rtrn=$?
  91         [ $rtrn = 0 ] && rm -f $LOCK_FILE
  92         ;;
  93
  94   stop)
  95         test "$runlevel" = "0" && WARN=0
  96         test "$runlevel" = "6" && WARN=0
  97         stop
  98         rtrn=$?
  99         [ $rtrn = 0 ] && rm -f $LOCK_FILE
 100         ;;
 101
 102   restart)
 103         WARN=0
 104         if stop
 105         then
 106                 start
 107         fi
 108         rtrn=$?
 109         ;;
 110
 111   status)
 112         # TODO anyone with an idea how to dump monitored volumes?
 113         ;;
 114
 115   *)
 116         echo $"Usage: $0 {start|stop|restart|status|force-stop}"
 117         ;;
 118 esac
 119
 120 exit $rtrn