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