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Diffstat (limited to '')
| -rwxr-xr-x | heartbeat/ICP | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/heartbeat/ICP b/heartbeat/ICP new file mode 100755 index 0000000..0bf37de --- /dev/null +++ b/heartbeat/ICP @@ -0,0 +1,304 @@ +#!/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 $0 supports + + ! +} + +meta_data() { + cat <<END +<?xml version="1.0"?> +<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd"> +<resource-agent name="ICP" version="1.0"> +<version>1.0</version> + +<longdesc lang="en"> +Resource script for ICP. It Manages an ICP Vortex clustered host drive as an +HA resource. +</longdesc> +<shortdesc lang="en">Manages an ICP Vortex clustered host drive</shortdesc> + +<parameters> +<parameter name="driveid" unique="0" required="1"> +<longdesc lang="en"> +The ICP cluster drive ID. +</longdesc> +<shortdesc lang="en">ICP cluster drive ID</shortdesc> +<content type="string" default="${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 |