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lvm-clvm.sh
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# lvm-clvmd.sh
#
# Description: LVM management with clvmd
#
#
# Author: Resource agents contributors
# Interface to LVM by Dejan Muhamedagic
# Support: users@clusterlabs.org
# License: GNU General Public License (GPL)
# Copyright: (C) 2017 Dejan Muhamedagic
#
##
# Attempt to deactivate vg cluster wide and then start the vg exclusively
##
retry_exclusive_start()
{
# Deactivate each LV in the group one by one cluster wide
set -- $(lvs -o name,attr --noheadings $OCF_RESKEY_volgrpname 2> /dev/null)
while [ $# -ge 2 ]; do
case $2 in
????ao*)
# open LVs cannot be deactivated.
return $OCF_ERR_GENERIC;;
*)
if ! lvchange -an $OCF_RESKEY_volgrpname/$1; then
ocf_exit_reason "Unable to perform required deactivation of $OCF_RESKEY_volgrpname/$1 before starting"
return $OCF_ERR_GENERIC
fi
;;
esac
shift 2
done
ocf_run vgchange $vgchange_activate_options $OCF_RESKEY_volgrpname
}
#
# the interface to the LVM RA
#
lvm_init() {
vgchange_activate_options="-aey"
vgchange_deactivate_options="-an"
}
lvm_validate_all() {
if ! ps -C clvmd > /dev/null 2>&1; then
ocf_exit_reason "$OCF_RESKEY_volgrpname has the cluster attribute set, but 'clvmd' is not running"
exit $OCF_ERR_GENERIC
fi
}
lvm_status() {
return 0
}
lvm_pre_activate() {
return 0
}
lvm_post_activate() {
local rc=$1
if [ $rc -ne 0 ]; then
# Failure to exclusively activate cluster vg.:
# This could be caused by a remotely active LV, Attempt
# to disable volume group cluster wide and try again.
# Allow for some settling
sleep 5
if ! retry_exclusive_start; then
return $OCF_ERR_GENERIC
fi
fi
return $rc
}
lvm_pre_deactivate() {
return 0
}
lvm_post_deactivate() {
local rc=$1
return $rc
}
# vim:tabstop=4:shiftwidth=4:textwidth=0:wrapmargin=0

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