Sorry, I'm newbie in GFS.
Followed Redhat's GFS documentation
To find out how GFS works, I have 2 nodes (node A and node B) for GFS and 1 node (node C) for GNBD server. It runs with no error but i don't know how to use it (GFS)
I attached my /etc/cluster/cluster.conf below.
My question is:
1. At a time, how many nodes have GFS filesystem mounted ? Where is the cluster's work in GFS ?
2. How do I shared the GFS filesystem to other server ? Do I need other software ?
3. From this configuration, if node A failed, what happen to the GFS filesystem ? failover to node B ? How about with the other server that is using the GFS filesystem in node A ?
4. Could you give me example what is actually the GFS real usage in real live ?
I'm absolutely confuse with this GFS on how they works.
Thanks
Regards,
Halomoan
--------------------- Cluster.conf ------------------------
<?xml version="1.0"?>
<cluster config_version="14" name="gfs_cluster">
<fence_daemon post_fail_delay="0" post_join_delay="3"/>
<clusternodes>
<clusternode name="p3" votes="1">
<fence>
<method name="1">
<device name="byhand" nodename="p3"/>
</method>
</fence>
</clusternode>
<clusternode name="p7" votes="1">
<fence>
<method name="1">
<device name="byhand" nodename="p7"/>
</method>
</fence>
</clusternode>
</clusternodes>
<cman expected_votes="1" two_node="1"/>
<fencedevices>
<fencedevice agent="fence_gnbd" name="p5_gnbd" servers="p5.xxx.com"/>
<fencedevice agent="fence_manual" name="byhand"/>
</fencedevices>
<rm>
<failoverdomains>
<failoverdomain name="failover" ordered="0" restricted="0">
<failoverdomainnode name="p3" priority="1"/>
<failoverdomainnode name="p7" priority="1"/>
</failoverdomain>
</failoverdomains>
<resources>
<clusterfs device="/dev/gnbd/global_disk" force_unmount="1" fsid="15674" fstype="gfs" mountpoint="/data" name="data" options=""/>
</resources>
<service autostart="1" domain="failover" name="test">
<clusterfs ref="data"/>
</service>
</rm>
</cluster>
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