Shared storage - Revision history

Cocodude at 12:05, 15 April 2013

2013-04-15T12:05:37Z

← Older revision		Revision as of 12:05, 15 April 2013
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	wfc-timeout 10;		wfc-timeout 10;
	degr-wfc-timeout: 10;		degr-wfc-timeout: 10;
			}
			net {
			ping-timeout: 100;
	}		}
	# Create /etc/drbd.d/r0.res:		# Create /etc/drbd.d/r0.res:

Cocodude at 16:46, 19 March 2013

2013-03-19T16:46:32Z

← Older revision		Revision as of 16:46, 19 March 2013
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	# Run insserv openais		# Run insserv openais
	# Run insserv clvm		# Run insserv clvm
			# Allow through firewall: ''iptables -A INPUT -p udp -i eth1 -m multiport --ports 5405 -j ACCEPT''
	# Change filter directive in /etc/lvm/lvm to read ''filter = [ "a/sd./", "a/drbd./", "r/.*/" ]''. Information on this is available [https://bugzilla.redhat.com/show_bug.cgi?id=530881 in this bug].		# Change filter directive in /etc/lvm/lvm to read ''filter = [ "a/sd./", "a/drbd./", "r/.*/" ]''. Information on this is available [https://bugzilla.redhat.com/show_bug.cgi?id=530881 in this bug].
	# pvcreate /dev/drbd1		# pvcreate /dev/drbd1
	# vgcreate --clustered y lvm_r0 /dev/drbd1		# vgcreate --clustered y lvm_r0 /dev/drbd1
	# Enable CLVM by setting locking_type=3 in lvm.conf. Possibly run lvmconf --enable-cluster on live systems.		# Enable CLVM by setting locking_type=3 in lvm.conf. Possibly run lvmconf --enable-cluster on live systems.

Cocodude at 12:12, 19 March 2013

2013-03-19T12:12:25Z

← Older revision		Revision as of 12:12, 19 March 2013
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	# Run insserv openais		# Run insserv openais
	# Run insserv clvm		# Run insserv clvm
	# Change filter directive in /etc/lvm/lvm to read ''filter = [ "a/sd./", "a/drbd./", "r/.*/" ]''		# Change filter directive in /etc/lvm/lvm to read ''filter = [ "a/sd./", "a/drbd./", "r/.*/" ]''. Information on this is available [https://bugzilla.redhat.com/show_bug.cgi?id=530881 in this bug].
	# pvcreate /dev/drbd1		# pvcreate /dev/drbd1
	# vgcreate --clustered y lvm_r0 /dev/drbd1		# vgcreate --clustered y lvm_r0 /dev/drbd1
	# Enable CLVM by setting locking_type=3 in lvm.conf. Possibly run lvmconf --enable-cluster on live systems.		# Enable CLVM by setting locking_type=3 in lvm.conf. Possibly run lvmconf --enable-cluster on live systems.

Cocodude at 12:10, 19 March 2013

2013-03-19T12:10:12Z

← Older revision		Revision as of 12:10, 19 March 2013
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	# On one of the nodes only, run drbdadm -- --overwrite-data-of-peer primary r0		# On one of the nodes only, run drbdadm -- --overwrite-data-of-peer primary r0
	# After sync, run drbdadm primary r0 on both nodes		# After sync, run drbdadm primary r0 on both nodes
	# apt-get install ~~clvm cman~~		# apt-get install corosync openais corosync-dev libdlm-dev
	# ~~Create a minimal cluster configuration file /etc/cluster/cluster~~.~~conf~~:		# Install customised lvm2 package. This is basically the lvm2 source following the instructions [http://www.pixelchaos.net/2009/04/23/openais-an-alternative-to-clvm-with-cman/ here] with the rules file having ''--enable-cluster=internal'' and ''--enable-clvm=corosync,openais''. Remember to run ''apt-get build-dep lvm2'' and ''apt-get install devscripts'' first.
	~~<cluster name="vmachines" config_version="1">~~		# Copy clvm daemon to /usr/sbin/. This is in debian/build/install_deb/usr/sbin/clvmd
	~~<cman expected_votes="1" two_node="1">~~		# mkdir /etc/ais
	</~~cman>~~		# Download the /etc/init.d/openais script from the site but also do the following:
	~~<clusternodes>~~		## chmod u+x
	~~<clusternode name="cloud1" votes="1" nodeid="1">~~		## Change reference to openais-cfgtool to corysync-cfgtool
	~~<fence>~~		## Add ''killall corosync'' to stop) and restart)
	~~<method name="1">~~		# Download the /etc/init.d/clvm init script but also do the following:
	~~<device name="dummy" nodename="cloud1"~~ />		## Add BEGIN INIT INFO section as per cloud1
	</~~method>~~		# Run insserv openais
	</~~fence>~~		# Run insserv clvm
	~~<unfence>~~		# Change filter directive in /etc/lvm/lvm to read ''filter = [ "a/sd./", "a/drbd./", "r/.*/" ]''
	~~<device name="dummy" nodename="cloud1" action="on"~~ />
	</~~unfence>~~
	</~~clusternode>~~
	~~<clusternode name~~=~~"cloud2" votes~~=~~"1" nodeid="2">~~
	~~<fence>~~
	~~<method name="2">~~
	~~<device name="dummy" nodename="cloud2"~~ />
	</~~method>~~
	</~~fence>~~
	~~<unfence>~~
	~~<device name="dummy" nodename="cloud2" action="on"~~ />
	</~~unfence>~~
	</~~clusternode>~~
	</~~clusternodes>~~
	~~<logging to_syslog="yes" to_logfile="yes" syslog_facility="daemon" syslog_priority="info">~~
	</~~logging>~~
	~~<fence_daemon post_join_delay="3"~~ />
	~~<totem rrp_mode="none" secauth="off"~~/>
	~~<fencedevices>~~
	~~<fencedevice name="dummy" agent="dummyfence"~~ />
	</~~fencedevices>~~
	</~~cluster>~~
	~~# Create /sbin/dummyfence with~~ the ~~conents~~:
	#~~!/bin/bash~~
	~~echo "success: dummyfence $2"~~
	~~exit 0~~
	# chmod u+x ~~this~~
	# ~~Create~~ /~~var~~/~~run~~/~~lvm directory~~
	# Run /etc/~~init~~.d/~~cman and~~ /~~etc~~/~~init~~.d/~~clvm~~
	# pvcreate /dev/drbd1		# pvcreate /dev/drbd1
	# vgcreate --clustered y lvm_r0 /dev/drbd1		# vgcreate --clustered y lvm_r0 /dev/drbd1
			# Enable CLVM by setting locking_type=3 in lvm.conf. Possibly run lvmconf --enable-cluster on live systems.
	~~Enabling~~ CLVM ~~is as easy as~~ setting locking_type=3 in lvm.conf. Possibly run lvmconf --enable-cluster on live systems.

Cocodude at 20:29, 11 March 2013

2013-03-11T20:29:09Z

← Older revision		Revision as of 20:29, 11 March 2013
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	# Run drbdadm up r0		# Run drbdadm up r0
	# On one of the nodes only, run drbdadm -- --overwrite-data-of-peer primary r0		# On one of the nodes only, run drbdadm -- --overwrite-data-of-peer primary r0
	# After sync, run ~~drbd-~~primary r0 on both nodes		# After sync, run drbdadm primary r0 on both nodes
	# apt-get install clvm cman		# apt-get install clvm cman
	# Create a minimal cluster configuration file /etc/cluster/cluster.conf:		# Create a minimal cluster configuration file /etc/cluster/cluster.conf:

Cocodude at 08:57, 11 March 2013

2013-03-11T08:57:54Z

← Older revision		Revision as of 08:57, 11 March 2013
Line 1:		Line 1:
	# Configure the network between the two servers		# Configure the network between the two servers
	# Allow through ports 7788-7799 only		# Allow through ports 7788-7799 only
			# Create the logical volume cloud
	# Install drbd8-utils		# Install drbd8-utils
	# Change the startup group in /etc/drbd.d/global_common.conf to read:		# Change the startup group in /etc/drbd.d/global_common.conf to read:
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	# Add drbd to /etc/modules and modprobe it		# Add drbd to /etc/modules and modprobe it
	# Run drbdadm up r0		# Run drbdadm up r0
	# On one of the nodes only, run drbdadm -- --overwrite-data-of-peer primary ~~resource~~		# On one of the nodes only, run drbdadm -- --overwrite-data-of-peer primary r0
	# After sync, run drbd-primary r0 on both nodes		# After sync, run drbd-primary r0 on both nodes
	# apt-get install clvm cman		# apt-get install clvm cman

Cocodude at 08:48, 11 March 2013

2013-03-11T08:48:40Z

← Older revision		Revision as of 08:48, 11 March 2013
Line 1:		Line 1:
	# Configure the network between the two servers		# Configure the network between the two servers
	# Allow through ports 7788-7799 only		# Allow through ports 7788-7799 only
	~~# Create new logical volume on both devices (cloud), 2G~~
	# Install drbd8-utils		# Install drbd8-utils
	# Change the startup group in /etc/drbd.d/global_common.conf to read:		# Change the startup group in /etc/drbd.d/global_common.conf to read:

Cocodude: Created page with "# Configure the network between the two servers # Allow through ports 7788-7799 only # Create new logical volume on both devices (cloud), 2G # Install drbd8-utils # Change the st..."

2013-03-08T13:39:34Z

Created page with "# Configure the network between the two servers # Allow through ports 7788-7799 only # Create new logical volume on both devices (cloud), 2G # Install drbd8-utils # Change the st..."

New page

# Configure the network between the two servers
# Allow through ports 7788-7799 only
# Create new logical volume on both devices (cloud), 2G
# Install drbd8-utils
# Change the startup group in /etc/drbd.d/global_common.conf to read:
startup {
wfc-timeout 10;
degr-wfc-timeout: 10;
}
# Create /etc/drbd.d/r0.res:
resource r0 {
on cloud1 {
device /dev/drbd1;
disk /dev/lvm1/cloud;
address 192.168.1.1:7789;
meta-disk internal;
}
on cloud2 {
device /dev/drbd1;
disk /dev/lvm1/cloud;
address 192.168.1.2:7789;
meta-disk internal;
}
net {
allow-two-primaries;
}
startup {
become-primary-on both;
}
syncer {
rate 20M;
}
}
# Run drbdadm create-md r0
# Add drbd to /etc/modules and modprobe it
# Run drbdadm up r0
# On one of the nodes only, run drbdadm -- --overwrite-data-of-peer primary resource
# After sync, run drbd-primary r0 on both nodes
# apt-get install clvm cman
# Create a minimal cluster configuration file /etc/cluster/cluster.conf:
<cluster name="vmachines" config_version="1">
<cman expected_votes="1" two_node="1">
</cman>
<clusternodes>
<clusternode name="cloud1" votes="1" nodeid="1">
<fence>
<method name="1">
<device name="dummy" nodename="cloud1" />
</method>
</fence>
<unfence>
<device name="dummy" nodename="cloud1" action="on" />
</unfence>
</clusternode>
<clusternode name="cloud2" votes="1" nodeid="2">
<fence>
<method name="2">
<device name="dummy" nodename="cloud2" />
</method>
</fence>
<unfence>
<device name="dummy" nodename="cloud2" action="on" />
</unfence>
</clusternode>
</clusternodes>
<logging to_syslog="yes" to_logfile="yes" syslog_facility="daemon" syslog_priority="info">
</logging>
<fence_daemon post_join_delay="3" />
<totem rrp_mode="none" secauth="off"/>
<fencedevices>
<fencedevice name="dummy" agent="dummyfence" />
</fencedevices>
</cluster>
# Create /sbin/dummyfence with the conents:
#!/bin/bash
echo "success: dummyfence $2"
exit 0
# chmod u+x this
# Create /var/run/lvm directory
# Run /etc/init.d/cman and /etc/init.d/clvm
# pvcreate /dev/drbd1
# vgcreate --clustered y lvm_r0 /dev/drbd1

Enabling CLVM is as easy as setting locking_type=3 in lvm.conf. Possibly run lvmconf --enable-cluster on live systems.