Home | History | Annotate | Line # | Download | only in rc.d
lvm revision 1.1.2.2 
      1 #!/bin/sh
      2 #
      3 # $NetBSD: lvm,v 1.1.2.2 2009/01/17 20:43:44 mjf 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 dm_test()
     16 {
     17     if [ -x /sbin/dmsetup ]; then
     18 	/sbin/dmsetup version >/dev/null
     19 	
     20 	if [ $? -ne 0 ]; then 
     21 	    echo "Device-mapper not present in kernel"
     22 	    exit;
     23 	fi
     24     fi
     25 }
     26 
     27 lvm_start()
     28 {
     29         dm_test;
     30 
     31         if [ -x /sbin/lvm ]; then
     32                 echo "Configuring lvm devices."
     33 
     34 		# Scan for all available VG's
     35 	        /sbin/lvm vgscan --mknodes --ignorelockingfailure >/dev/null
     36 		
     37 		# Activate all LV's and create apropriate nodes in /dev
     38 		/sbin/lvm vgchange --ignorelockingfailure -a y >/dev/null
     39 		
     40 		echo "   Activated Volume Groups:"`/sbin/lvm vgdisplay -C -o vg_name --noheadings 2>/dev/null`
     41         fi
     42 }
     43 
     44 lvm_stop()
     45 {
     46       dm_test;
     47 
     48       if [ -x /sbin/lvm ]; then
     49                 echo "Deconfiguring lvm devices."
     50 
     51 		LOGICAL_VOLUMES=`/sbin/lvm lvdisplay -C -o vg_name,lv_name -O vg_name --separator \/ --noheadings 2>/dev/null`
     52 		VOLUME_GROUPS=`/sbin/lvm vgdisplay -C -o vg_name --separator " " --noheadings 2>/dev/null`
     53 
     54 		for x in ${LOGICAL_VOLUMES}; do
     55 		    IFS=":"
     56 		    set -- `/sbin/lvm lvdisplay -c`
     57 		    # The fourth argument in the column LV display is inkernel flag
     58 		    LV_IS_ACTIVE=$4;
     59 		    unset IFS
     60 
     61 		    if [ ${LV_IS_ACTIVE} -eq 1 ]; then
     62 			echo "  Shutting Down logical volume: ${x} "
     63 			/sbin/lvm lvchange -an --ignorelockingfailure -P ${x} >/dev/null
     64 		    fi
     65 		done
     66 
     67 		for x in ${VOLUME_GROUPS}; do
     68 		    echo "VG -> |${x}|"
     69 		    # Set IFS to field separator
     70 		    IFS=":"
     71 		    set -- `/sbin/lvm vgdisplay -cA ${x} 2>/dev/null`
     72 		    # The seventh parameter is number of opened LVs in a Volume Group
     73 		    VG_HAS_ACTIVE_LV=$7
     74 		    unset IFS
     75 
     76 		    if [ "${VG_HAS_ACTIVE_LV}" = 0 ]
     77 		    then
     78 			echo "  Shutting Down volume group: ${x}"
     79 			/sbin/lvm vgchange -an --ignorelockingfailure -P ${x} >/dev/null
     80 		    fi
     81 		done
     82         fi
     83 }
     84 
     85 load_rc_config $name
     86 run_rc_command "$1"
     87 
     88