diff --git a/heartbeat/LVM b/heartbeat/LVM index 1dca2c19c..1daabe89f 100644 --- a/heartbeat/LVM +++ b/heartbeat/LVM @@ -1,353 +1,353 @@ #!/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_ROOT}/resource.d/heartbeat/.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 ! exit $OCF_ERR_GENERIC } meta_data() { cat < 1.0 Resource script for LVM. It manages an Linux Volume Manager volume (LVM) as an HA resource. LVM resource agent The name of volume group. Volume group name If set, the volume group will be activated exclusively. Exclusive activation END } # # methods: What methods/operations do we support? # LVM_methods() { cat <<-! start stop status monitor methods validate-all usage ! } # # Return LVM status (silently) # LVM_status() { if [ "$LVM_MAJOR" -eq "1" ] then vgdisplay $1 | grep -i 'Status.*available' >/dev/null return $? else vgdisplay -v $1 | grep -i 'Status[ \t]*available' >/dev/null return $? fi } # # Report on LVM volume status to stdout... # LVM_report_status() { if [ "$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 -eq 0 ] then : Volume $1 is available else ocf_log debug "LVM Volume $1 is not available (stopped)" return $OCF_NOT_RUNNING fi if echo "$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() { if LVM_status $1 then : OK else ocf_log info "LVM Volume $1 is offline" return $OCF_NOT_RUNNING fi ocf_run vgck $1 return $? } # # Enable LVM volume # LVM_start() { # 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 ocf_run vgchange -a $active_mode $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_ERR_GENERIC + 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 0 } ocf_log info "Deactivating volume group $1" ocf_run vgchange -a ln $1 || return 1 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 $AWK # Off-the-shelf tests... vgck "$VOLUME" >/dev/null 2>&1 if [ $? -ne 0 ]; then ocf_log err "Volume group [$VOLUME] does not exist or contains error!" exit $OCF_ERR_GENERIC fi # Double-check if [ "$LVM_MAJOR" -eq "1" ] then vgdisplay "$VOLUME" >/dev/null 2>&1 else vgdisplay -v "$VOLUME" >/dev/null 2>&1 fi if [ $? -ne 0 ]; then ocf_log err "Volume group [$VOLUME] does not exist or contains error!" 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_ARGS 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 # What kind of method was invoked? case "$1" in start) LVM_start $VOLUME exit $?;; stop) LVM_stop $VOLUME exit $?;; status) LVM_report_status $VOLUME exit $?;; monitor) LVM_monitor $VOLUME exit $?;; validate-all) LVM_validate_all ;; *) usage exit $OCF_ERR_AEGS;; esac