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#!/bin/sh
#
#
# ICP
#
# Description: Manages an ICP Vortex clustered host drive as an HA resource
#
#
# Author: Lars Marowsky-Bree <lmb@suse.de>
# Support: users@clusterlabs.org
# License: GNU General Public License (GPL)
# Copyright: (C) 2002 SuSE Linux AG
#
#
# An example usage in /etc/ha.d/haresources:
# node1 10.0.0.170 LinuxSCSI::0:0 ICP::c0h1::/dev/sdb1 LVM::myvolname
#
# Notice that you will need to get the utility "icpclucon" from the ICP
# support to use this.
#
# See usage() function below for more details...
#
# OCF parameters are as below:
# OCF_RESKEY_driveid
# OCF_RESKEY_device
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
# Parameter defaults
OCF_RESKEY_driveid_default=""
OCF_RESKEY_device_default=""
: ${OCF_RESKEY_driveid=${OCF_RESKEY_driveid_default}}
: ${OCF_RESKEY_device=${OCF_RESKEY_device_default}}
#######################################################################
#
ICPCLUCON=/usr/sbin/icpclucon
#
usage() {
methods=`ICP_methods | grep -v methods`
methods=`echo $methods | tr ' ' '|'`
cat <<-!
usage: $0 ($methods)
$0 manages an ICP Vortex clustered host drive.
The 'start' operation reserves the given host drive.
The 'stop' operation releses the given host drive.
The 'status' operation reports whether the host drive is reserved.
The 'monitor' operation reports whether the host drive is reserved.
The 'validate-all' operation reports whether OCF instance parameters are valid.
The 'methods' operation reports on the methods $0 supports
!
}
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="ICP">
<version>1.0</version>
<longdesc lang="en">
Resource script for ICP. It Manages an ICP Vortex clustered host drive as an
HA resource.
</longdesc>
<shortdesc lang="en">Manages an ICP Vortex clustered host drive</shortdesc>
<parameters>
<parameter name="driveid" unique="0" required="1">
<longdesc lang="en">
The ICP cluster drive ID.
</longdesc>
<shortdesc lang="en">ICP cluster drive ID</shortdesc>
<content type="string" default="${OCF_RESKEY_driveid_default}" />
</parameter>
<parameter name="device" unique="0" required="1">
<longdesc lang="en">
The device name.
</longdesc>
<shortdesc lang="en">device</shortdesc>
<content type="string" default="${OCF_RESKEY_device_default}" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="20s" />
<action name="stop" timeout="20s" />
<action name="status" depth="0" timeout="20s" interval="10s" />
<action name="monitor" depth="0" timeout="20s" interval="10s" />
<action name="validate-all" timeout="5s" />
<action name="meta-data" timeout="5s" />
</actions>
</resource-agent>
END
}
#
# methods: What methods/operations do we support?
#
ICP_methods() {
cat <<-!
start
stop
status
monitor
methods
validate-all
meta-data
usage
!
}
ICP_status() {
local icp_out
icp_out=$($ICPCLUCON -v -status $1)
if [ $? -ne 0 ]; then
ocf_log "err" "Hostdrive not reserved by us."
return $OCF_ERR_GENERIC
fi
if expr match "$icp_out" \
'.*Drive is reserved by this host.*' >/dev/null 2>&1 ; then
ocf_log "info" "Volume $1 is reserved by us."
return $OCF_SUCCESS
elif expr match "$icp_out" \
'.*Drive is not reserved by any host.*' >/dev/null 2>&1 ; then
ocf_log "err" "Volume $1 not reserved by any host."
return $OCF_NOT_RUNNING
else
ocf_log "err" "Unknown output from icpclucon. Assuming we do not have a reservation:"
ocf_log "err" "$icp_out"
return $OCF_NOT_RUNNING
fi
}
ICP_report_status() {
if ICP_status $1 ; then
echo "$1: running"
return $OCF_SUCCESS
else
echo "$1: not running"
return $OCF_NOT_RUNNING
fi
}
#
# Monitor the host drive - does it really seem to be working?
#
#
ICP_monitor() {
if
ICP_status $1
then
return $?
else
ocf_log "err" "ICP host drive $1 is offline"
return $OCF_NOT_RUNNING
fi
}
Clear_bufs() {
$BLOCKDEV --flushbufs $1
}
#
# Enable ICP host drive
#
ICP_start() {
ocf_log "info" "Activating host drive $1"
ocf_run $ICPCLUCON -v -reserve $1
if [ $? -ne 0 ]; then
ocf_log "info" "Forcing reservation of $1"
ocf_run $ICPCLUCON -v -force $1 || return $OCF_ERR_GENERIC
fi
if
ICP_status $1
then
: OK
# A reservation isn't as prompt as it should be
sleep 3
return $OCF_SUCCESS
else
ocf_log "err" "ICP: $1 was not reserved correctly"
return $OCF_ERR_GENERIC
fi
}
#
# Release the ICP host drive
#
ICP_stop() {
ocf_log "info" "Releasing ICP host drive $1"
ocf_run $ICPCLUCON -v -release $1 || return $OCF_ERR_GENERIC
ocf_log "info" "Verifying reservation"
if ICP_status $1 ; then
ocf_log "err" "ICP: $1 was not released correctly"
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
ICP_validate_all() {
check_binary $BLOCKDEV
check_binary $ICPCLUCON
$ICPCLUCON -v -status $driveid >/dev/null 2>&1
if [ $? -ne 0 ]; then
ocf_log err "Invalid driveid $driveid"
exit $OCF_ERR_ARGS
fi
if [ ! -b $device ]; then
ocf_log err "Device $device is not a block device"
exit $OCF_ERR_ARGS
fi
# Do not know how to check the association of $device with $driveid.
return $OCF_SUCCESS
}
#
# 'main' starts here...
#
if
( [ $# -ne 1 ] )
then
usage
exit $OCF_ERR_ARGS
fi
# These operations do not require OCF instance parameters to be set
case "$1" in
meta-data) meta_data
exit $OCF_SUCCESS;;
methods) ICP_methods
exit $OCF_SUCCESS;;
usage) usage
exit $OCF_SUCCESS;;
*) ;;
esac
if
[ -z "$OCF_RESKEY_driveid" ]
then
ocf_log err "Please specify OCF_RESKEY_driveid"
exit $OCF_ERR_ARGS
fi
if [ -z "$OCF_RESKEY_device" ]; then
ocf_log err "Please specify OCF_RESKEY_device"
exit $OCF_ERR_ARGS
fi
driveid=$OCF_RESKEY_driveid
device=$OCF_RESKEY_device
# What kind of method was invoked?
case "$1" in
start) ICP_validate_all
ICP_start $driveid
Clear_bufs $device
exit $?;;
stop) ICP_stop $driveid
Clear_bufs $device
exit $?;;
status) ICP_report_status $driveid
exit $?;;
monitor) ICP_monitor $driveid
exit $?;;
validate-all) ICP_validate_all
exit $?;;
*) usage
exit $OCF_ERR_UNIMPLEMENTED;;
esac

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text/x-shellscript
Expires
Sun, Jul 20, 8:40 PM (1 d, 9 h)
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Storage Handle
2017851
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ICP (6 KB)

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