diff --git a/heartbeat/LVM b/heartbeat/LVM index 05eefe738..3b47d0be7 100755 --- a/heartbeat/LVM +++ b/heartbeat/LVM @@ -1,380 +1,380 @@ #!/bin/sh # # # LVM # # Description: Manages an LVM volume as an HA resource # # # Author: Alan Robertson # Support: linux-ha@lists.linux-ha.org # License: GNU General Public License (GPL) # Copyright: (C) 2002 - 2005 International Business Machines, Inc. # # This code significantly inspired by the LVM resource # in FailSafe by Lars Marowsky-Bree # # # An example usage in /etc/ha.d/haresources: # node1 10.0.0.170 ServeRAID::1::1 LVM::myvolname # # See usage() function below for more details... # # OCF parameters are as below: # OCF_RESKEY_volgrpname # ####################################################################### # Initialization: : ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} . ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs ####################################################################### usage() { methods=`LVM_methods` methods=`echo $methods | tr ' ' '|'` cat <<-! usage: $0 $methods $0 manages an Linux Volume Manager volume (LVM) as an HA resource The 'start' operation brings the given volume online The 'stop' operation takes the given volume offline The 'status' operation reports whether the volume is available The 'monitor' operation reports whether the volume seems present The 'validate-all' operation checks whether the OCF parameters are valid The 'methods' operation reports on the methods $0 supports ! } meta_data() { cat < 1.0 Resource script for LVM. It manages an Linux Volume Manager volume (LVM) as an HA resource. Controls the availability of an LVM Volume Group The name of volume group. Volume group name If set, the volume group will be activated exclusively. Exclusive activation - + If set, the volume group will be activated even only partial of the physical volumes available. It helps to set to true, when you are using mirroring logical volumes. Activate VG even with partial PV only END } # # methods: What methods/operations do we support? # LVM_methods() { cat <<-! start stop status monitor methods validate-all usage ! } # # Return LVM status (silently) # LVM_status() { local rc loglevel="debug" # Set the log level of the error message if [ "X${2}" = "X" ]; then loglevel="err" if ocf_is_probe; then loglevel="warn" else if [ ${OP_METHOD} = "stop" ]; then loglevel="info" fi fi fi if [ "$LVM_MAJOR" -eq "1" ] then VGOUT=`vgdisplay $1 2>&1` echo "$VGOUT" | grep -i 'Status.*available' >/dev/null rc=$? else VGOUT=`vgdisplay -v $1 2>&1` echo "$VGOUT" | grep -i 'Status[ \t]*available' >/dev/null rc=$? fi if [ $rc -ne 0 ]; then ocf_log $loglevel "LVM Volume $1 is not available (stopped). ${VGOUT}" fi if [ "X${2}" = "X" ]; then # status call return return $rc fi # Report on LVM volume status to stdout... if echo "$VGOUT" | grep -i 'Access.*read/write' >/dev/null then ocf_log debug "Volume $1 is available read/write (running)" else ocf_log debug "Volume $1 is available read-only (running)" fi return $OCF_SUCCESS } # # Monitor the volume - does it really seem to be working? # # LVM_monitor() { local rc if LVM_status $1 then : OK else ocf_log info "LVM Volume $1 is offline" return $OCF_NOT_RUNNING fi VGOUT=`vgck $1 2>&1` rc=$? if [ $rc -ne 0 ]; then ocf_log err "LVM Volume $1 is not found. ${VGOUT}:${rc}" return $OCF_ERR_GENERIC fi return $OCF_SUCCESS } # # Enable LVM volume # LVM_start() { local vgchange_options local active_mode # TODO: This MUST run vgimport as well ocf_log info "Activating volume group $1" if [ "$LVM_MAJOR" -eq "1" ]; then ocf_run vgscan $1 else ocf_run vgscan fi active_mode="ly" if ocf_is_true "$OCF_RESKEY_exclusive" ; then active_mode="ey" fi vgchange_options="-a $active_mode" if ocf_is_true "$OCF_RESKEY_partial_activation" ; then vgchange_options="$vgchange_options --partial" fi # for clones (clustered volume groups), we'll also have to force # monitoring, even if disabled in lvm.conf. if ocf_is_clone; then vgchange_options="$vgchange_options --monitor y" fi ocf_run vgchange $vgchange_options $1 || return $OCF_ERR_GENERIC if LVM_status $1; then : OK Volume $1 activated just fine! return $OCF_SUCCESS else ocf_log err "LVM: $1 did not activate correctly" return $OCF_NOT_RUNNING fi } # # Disable the LVM volume # LVM_stop() { vgdisplay "$1" 2>&1 | grep 'Volume group .* not found' >/dev/null && { ocf_log info "Volume group $1 not found" return $OCF_SUCCESS } ocf_log info "Deactivating volume group $1" ocf_run vgchange -a ln $1 || return $OCF_ERR_GENERIC if LVM_status $1 then ocf_log err "LVM: $1 did not stop correctly" return $OCF_ERR_GENERIC fi # TODO: This MUST run vgexport as well return $OCF_SUCCESS } # # Check whether the OCF instance parameters are valid # LVM_validate_all() { check_binary $AWK # Off-the-shelf tests... VGOUT=`vgck ${VOLUME} 2>&1` if [ $? -ne 0 ]; then ocf_log err "Volume group [$VOLUME] does not exist or contains error! ${VGOUT}" exit $OCF_ERR_GENERIC fi # Double-check if [ "$LVM_MAJOR" -eq "1" ] then VGOUT=`vgdisplay ${VOLUME} 2>&1` else VGOUT=`vgdisplay -v ${VOLUME} 2>&1` fi if [ $? -ne 0 ]; then ocf_log err "Volume group [$VOLUME] does not exist or contains error! ${VGOUT}" exit $OCF_ERR_GENERIC fi return $OCF_SUCCESS } # # 'main' starts here... # if [ $# -ne 1 ] then usage exit $OCF_ERR_ARGS fi case $1 in meta-data) meta_data exit $OCF_SUCCESS;; methods) LVM_methods exit $?;; usage) usage exit $OCF_SUCCESS;; *) ;; esac if [ -z "$OCF_RESKEY_volgrpname" ] then # echo "You must identify the volume group name!" ocf_log err "You must identify the volume group name!" # usage exit $OCF_ERR_CONFIGURED fi # Get the LVM version number, for this to work we assume(thanks to panjiam): # # LVM1 outputs like this # # # vgchange --version # vgchange: Logical Volume Manager 1.0.3 # Heinz Mauelshagen, Sistina Software 19/02/2002 (IOP 10) # # LVM2 and higher versions output in this format # # # vgchange --version # LVM version: 2.00.15 (2004-04-19) # Library version: 1.00.09-ioctl (2004-03-31) # Driver version: 4.1.0 LVM_VERSION=`vgchange --version 2>&1 | \ $AWK '/Logical Volume Manager/ {print $5"\n"; exit; } /LVM version:/ {printf $3"\n"; exit;}'` rc=$? if ( [ $rc -ne 0 ] || [ -z "$LVM_VERSION" ] ) then ocf_log err "LVM: $1 could not determine LVM version. Try 'vgchange --version' manually and modify $0 ?" exit $OCF_ERR_INSTALLED fi LVM_MAJOR="${LVM_VERSION%%.*}" VOLUME=$OCF_RESKEY_volgrpname OP_METHOD=$1 # What kind of method was invoked? case "$1" in start) LVM_start $VOLUME exit $?;; stop) LVM_stop $VOLUME exit $?;; status) LVM_status $VOLUME $1 exit $?;; monitor) LVM_monitor $VOLUME exit $?;; validate-all) LVM_validate_all ;; *) usage exit $OCF_ERR_UNIMPLEMENTED;; esac