Hi,
I have a samba cluster w/ three nodes (heartbeat 2.1.3 / crm-enabled). Now I
need to add a fourth one. What
will be the best way to do this w/o any service interruption?
First step - Node4 has to become a member of the cluster. I would do it like
this:
Node1: /etc/init.d/heartbeat stop
Node1: add Node4 to /etc/ha.d/ha.cf
Node1: /etc/init.d/heartbeat start
Node2: /etc/init.d/heartbeat stop
Node2: add Node4 to /etc/ha.d/ha.cf
Node2: /etc/init.d/heartbeat start
Node3: /etc/init.d/heartbeat stop
Node3: add Node4 to /etc/ha.d/ha.cf
Node3: /etc/init.d/heartbeat start
On Node4 heartbeat is already configured, so "/etc/init.d/heartbeat start" on
Node4 will be enough.
----
Second step - we have to add a resource, for which Node4 should become the
preferred node.
My idea:
Node1: /etc/init.d/heartbeat stop
Node1: add a line to haresources like:
node4 IPaddr2::192.168.y.z/24/ethX:Y samba-ha::node4
Node1: /etc/init.d/heartbeat start
Node2: /etc/init.d/heartbeat stop
Node2: add a line to haresources like:
node4 IPaddr2::192.168.y.z/24/ethX:Y samba-ha::node4
Node2: /etc/init.d/heartbeat start
Node3: /etc/init.d/heartbeat stop
Node3: add a line to haresources like:
node4 IPaddr2::192.168.y.z/24/ethX:Y samba-ha::node4
Node3: /etc/init.d/heartbeat start
Node4: /etc/init.d/heartbeat stop
Node4: add a line to haresources like:
node4 IPaddr2::192.168.y.z/24/ethX:Y samba-ha::node4
Node4: /etc/init.d/heartbeat start
Will this work? Is there a more comfortable way?
Thanks a lot
Alex
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