etc/rc.d/lvm

   1 #!/bin/sh
   2 #
   3 # $NetBSD: lvm,v 1.4 2009/04/13 18:48:14 haad Exp $
   4 #
   5
   6 # PROVIDE: lvm
   7 # REQUIRE: udevd_early
   8
   9 . /etc/rc.subr
  10
  11 name="lvm"
  12 rcvar=$name
  13 start_cmd="lvm_start"
  14 stop_cmd="lvm_stop"
  15
  16 ifs_restore="$IFS"
  17
  18 lvm_start()
  19 {
  20         if [ -x /sbin/dmsetup ]; then
  21                 /sbin/dmsetup version >/dev/null
  22                 if [ $? -ne 0 ]; then
  23                         warn "Device-mapper not present in kernel"
  24                         return 1;
  25                 fi
  26         fi
  27
  28         if [ -x /sbin/lvm ]; then
  29                 echo "Configuring lvm devices."
  30
  31                 # Scan for all available VG's
  32                 /sbin/lvm vgscan --mknodes --ignorelockingfailure >/dev/null
  33
  34                 # Activate all LV's and create appropriate nodes in /dev
  35                 /sbin/lvm vgchange --ignorelockingfailure -a y >/dev/null
  36                 LV_LIST=$(/sbin/lvm vgdisplay -C -o vg_name --noheadings 2>/dev/null)
  37                 echo " Activated Volume Groups:" $LV_LIST
  38         fi
  39 }
  40
  41 lvm_stop()
  42 {
  43         if [ -x /sbin/dmsetup ]; then
  44                 /sbin/dmsetup version >/dev/null
  45                 if [ $? -ne 0 ]; then
  46                         warn "Device-mapper not present in kernel"
  47                         return 1;
  48                 fi
  49         fi
  50
  51         if [ -x /sbin/lvm ]; then
  52                 echo "Unconfiguring lvm devices."
  53
  54                 LOGICAL_VOLUMES=$(/sbin/lvm lvdisplay -C -o vg_name,lv_name \
  55                         -O vg_name --separator \/ --noheadings 2>/dev/null)
  56                 VOLUME_GROUPS=$(/sbin/lvm vgdisplay -C -o vg_name \
  57                         --separator " " --noheadings 2>/dev/null)
  58
  59                 for lv in ${LOGICAL_VOLUMES}; do
  60                         LV_IS_ACTIVE=$(/sbin/lvm lvdisplay -C --noheadings \
  61                                 -o lv_attr $lv)
  62                         case $LV_IS_ACTIVE in
  63                         *a*)
  64                                 echo "  Shutting Down logical volume: ${lv}"
  65                                 /sbin/lvm lvchange -an --ignorelockingfailure \
  66                                         -P ${lv} >/dev/null
  67                                 ;;
  68                         esac
  69                 done
  70
  71                 for vg in ${VOLUME_GROUPS}; do
  72                         # Set IFS to field separator
  73                         IFS=":"
  74                         set -- $(/sbin/lvm vgdisplay -cA ${vg} 2>/dev/null)
  75                         # The seventh parameter is number of opened LVs in a Volume Group
  76                         VG_HAS_ACTIVE_LV=$7
  77                         IFS="$ifs_restore";
  78
  79                         if [ "${VG_HAS_ACTIVE_LV}" = 0 ]; then
  80                                 echo "  Shutting Down volume group: ${vg}"
  81                                 /sbin/lvm vgchange -an --ignorelockingfailure \
  82                                         -P ${vg} >/dev/null
  83                         fi
  84                 done
  85         fi
  86 }
  87
  88 load_rc_config $name
  89 run_rc_command "$1"