Gfs HowTo Debian Etch
Bisogna installare CLVM e modificare l'/etc/lvm/lvm.conf per attivare il locking del cluster.
locking_library = "liblvm2clusterlock.so" locking_type = 2 library_dir = "/lib/lvm2"
/etc/cluster/cluster.conf
<?xml version="1.0"?>
<cluster name="cluster1" config_version="4">
<cman two_node="1" expected_votes="1"/>
<clusternodes>
<clusternode name="nfs2" votes="1">
<fence>
<method name="single">
<device name="manual" ipaddr="nfs2.nfsnet"/>
</method>
</fence>
</clusternode>
<clusternode name="nfs1" votes="1">
<fence>
<method name="single">
<device name="manual" ipaddr="nfs1.nfsnet"/>
</method>
</fence>
</clusternode>
</clusternodes>
<fencedevices>
<fencedevice name="manual" agent="fence_manual"/>
</fencedevices>
<rm>
<failoverdomains/>
<resources/>
</rm>
</cluster>Xen
usa w! per forzare l'accesso da + DomU
modprobe cman dlm /etc/init.d/ccs start (questo dovrebbe andare in init da solo) /etc/init.d/cman start (questo solo se modprobe cman) clvmd (questo solo se modprobe dlm) fence_tool join -D fence_ack_manual -n nfs1.nfsnet per attivare il volume group vgchange -a y varie: cman_tool join -c cluster1 -X -e 1 ccs_tool addfence --no_ccs manual fence_manual pvcreate --metadatacopies 2 /dev/sda Physical volume "/dev/sda" successfully created vgcreate --clustered y clvg01 /dev/sda Volume group "clvg01" successfully created lvcreate --size 2T --name mylv clvg01 gfs_mkfs -j 8 -p lock_dlm -t cluster1:dsk1 /dev/mapper/clvg01-mylv
