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lvm revision 1.3 
      1 #!/bin/sh
      2 #
      3 # $NetBSD: lvm,v 1.3 2009/03/05 10:35:43 haad Exp $
      4 #
      5 
      6 # PROVIDE: disks
      7 
      8 $_rc_subr_loaded . /etc/rc.subr
      9 
     10 name="lvm"
     11 rcvar=$name
     12 start_cmd="lvm_start"
     13 stop_cmd="lvm_stop"
     14 
     15 ifs_restore="$IFS";
     16 
     17 lvm_start()
     18 {
     19 	if [ -x /sbin/dmsetup ]; then
     20 		/sbin/dmsetup version >/dev/null
     21 		if [ $? -ne 0 ]; then 
     22 			warn "Device-mapper not present in kernel"
     23 			return 1;
     24 		fi
     25 	fi
     26 
     27 	if [ -x /sbin/lvm ]; then
     28 		echo "Configuring lvm devices."
     29 
     30 		# Scan for all available VG's
     31 		/sbin/lvm vgscan --mknodes --ignorelockingfailure >/dev/null
     32 	
     33 		# Activate all LV's and create apropriate nodes in /dev
     34 		/sbin/lvm vgchange --ignorelockingfailure -a y >/dev/null
     35 		LV_LIST=$(/sbin/lvm vgdisplay -C -o vg_name --noheadings 2>/dev/null)
     36 		echo " Activated Volume Groups:" $LV_LIST
     37 	fi
     38 }
     39 
     40 lvm_stop()
     41 {
     42 	if [ -x /sbin/dmsetup ]; then
     43 		/sbin/dmsetup version >/dev/null
     44 		if [ $? -ne 0 ]; then 
     45 			warn "Device-mapper not present in kernel"
     46 			return 1;
     47 		fi
     48 	fi
     49 
     50 	if [ -x /sbin/lvm ]; then
     51 		echo "Unconfiguring lvm devices."
     52 	
     53 		LOGICAL_VOLUMES=$(/sbin/lvm lvdisplay -C -o vg_name,lv_name \
     54 			-O vg_name --separator \/ --noheadings 2>/dev/null)
     55 		VOLUME_GROUPS=$(/sbin/lvm vgdisplay -C -o vg_name \
     56 			--separator " " --noheadings 2>/dev/null)
     57 
     58 		for lv in ${LOGICAL_VOLUMES}; do
     59 			LV_IS_ACTIVE=$(/sbin/lvm lvdisplay -C --noheadings \
     60 				-o lv_attr $lv)
     61 			case $LV_IS_ACTIVE in
     62 			*a*)
     63 				echo "  Shutting Down logical volume: ${lv}"
     64 				/sbin/lvm lvchange -an --ignorelockingfailure \
     65 					-P ${lv} >/dev/null
     66 				;;
     67 			esac
     68 		done
     69 	
     70 		for vg in ${VOLUME_GROUPS}; do
     71 			# Set IFS to field separator
     72 			IFS=":"
     73 			set -- $(/sbin/lvm vgdisplay -cA ${vg} 2>/dev/null)
     74 			# The seventh parameter is number of opened LVs in a Volume Group
     75 			VG_HAS_ACTIVE_LV=$7
     76 			IFS="$ifs_restore";
     77     
     78 			if [ "${VG_HAS_ACTIVE_LV}" = 0 ]; then
     79 				echo "  Shutting Down volume group: ${vg}"
     80 				/sbin/lvm vgchange -an --ignorelockingfailure \
     81 					-P ${vg} >/dev/null
     82 			fi
     83 		done
     84 	fi
     85 }
     86 
     87 load_rc_config $name
     88 run_rc_command "$1"
     89