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#!/bin/bash
#
# This STONITH script drives the shared-storage stonith plugin.
#
# Author: Lars Marowsky-Bree
# Copyright: 2008 Lars Marowsky-Bree
# License: GNU General Public License (GPL)
#
# Main code
if [ x$sbd_device = x ]; then
if [ -f /etc/sysconfig/sbd ]; then
source /etc/sysconfig/sbd
sbd_device=$SBD_DEVICE
fi
fi
SBD_DEVS=${sbd_device%;}
sbd_device=${SBD_DEVS//;/ -d }
case $1 in
gethosts)
echo `sbd -d $sbd_device list | cut -f2 | sort | uniq`
exit 0
;;
off|reset)
message=$1
case "$crashdump" in
yes|true|1|YES|TRUE|ja|on|ON) message="crashdump" ;;
esac
sbd -d $sbd_device message $2 $message
exit $?
;;
status)
if ! sbd -d $sbd_device list >/dev/null 2>&1 ; then
ha_log.sh err "sbd could not list nodes from $sbd_device"
exit 1
fi
exit 0
;;
on)
exit 1
;;
getconfignames)
echo "sbd_device crashdump"
exit 0
;;
getinfo-devid)
echo "Shared storage STONITH device"
exit 0
;;
getinfo-devname)
echo "Shared storage STONITH device"
exit 0
;;
getinfo-devdescr)
cat << DESC
sbd uses a shared storage device as a medium to communicate
fencing requests. This allows clusters without network power
switches; the downside is that access to the shared storage
device becomes a Single Point of Failure.
It requires sbd to be configured on all nodes.
Please read http://linux-ha.org/wiki/SBD_Fencing!
DESC
exit 0
;;
getinfo-devurl)
echo "http://linux-ha.org/wiki/SBD_Fencing"
exit 0
;;
getinfo-xml)
cat << SSHXML
<parameters>
<parameter name="crashdump">
<content type="string" />
<shortdesc lang="en">
Crashdump instead of regular fence
</shortdesc>
<longdesc lang="en">
If SBD is given a fence command, this option will instead perform a
kernel crash of a reboot or power-off, which on a properly configured
system can lead to a crashdump for analysis.
This is less safe for production environments. Please use with caution
and for debugging purposes only.
</longdesc>
</parameter>
<parameter name="sbd_device" unique="1">
<content type="string" />
<shortdesc lang="en">
SBD device(s)
</shortdesc>
<longdesc lang="en">
The block device used for the SBD partition. Up to three
can be specified if separated by a semicolon. (Please check
the documentation if specifying two.)
If not specified, will default to the value from /etc/sysconfig/sbd.
</longdesc>
</parameter>
</parameters>
SSHXML
exit 0
;;
*)
exit 1
;;
esac

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Mon, Dec 23, 12:16 PM (1 d, 1 h)
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Storage Handle
1128319
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sbd (2 KB)

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