On 03/04/2013, at 9:15 PM, Oriol Mula-Valls <oriol.mula-va...@ic3.cat> wrote:
> Hi, > > I've started with Linux HA about one year ago. Currently I'm facing a new > project in which I have to set up two nodes with high available virtual > machines. I have used as a starting point the Digimer's tutorial > (https://alteeve.ca/w/2-Node_Red_Hat_KVM_Cluster_Tutorial). > > To deploy this new infrastructure I have two Fujitsu Primergy Rx100S7. Both > machines have 8GB of RAM and 2x500GB HD. I started creating a software RAID1 > with the internal drives and installing Debian 7.0 (Wheezy). Apart from the > O.S. partition I have created 3 more partitions, one for the shared storage > between both machines with OCFS2 and the two other will be used as PVs to > create LVs to support the VMs (one for the VMs that will be primary on node1 > an the other for primary machines on node2). These 3 partitions are > replicated using DRBD. > > The shared storage folder contains: > * ISO images needed when provisioning VMs > * scripts used to call virt-install which handles the creation of our VMs. > * XML definition files which define the emulated hardware backing the VMs > * old copies of the XML definition files. > > I have more or less done the configuration for the OCFS2 fs and I was about > to start the configuration of cLVM for one of the VGs but I have some doubts. > I have one dlm for the OCFS2 filesystem, should I create another for cLVM RA? No, there should only ever be one dlm resource (cloned like you have it) > > This is the current configuration: > node node1 > node node2 > primitive p_dlm_controld ocf:pacemaker:controld \ > op start interval="0" timeout="90" \ > op stop interval="0" timeout="100" \ > op monitor interval="10" > primitive p_drbd_shared ocf:linbit:drbd \ > params drbd_resource="shared" \ > op monitor interval="10" role="Master" timeout="20" \ > op monitor interval="20" role="Slave" timeout="20" \ > op start interval="0" timeout="240s" \ > op stop interval="0" timeout="120s" > primitive p_drbd_vm_1 ocf:linbit:drbd \ > params drbd_resource="vm_1" \ > op monitor interval="10" role="Master" timeout="20" \ > op monitor interval="20" role="Slave" timeout="20" \ > op start interval="0" timeout="240s" \ > op stop interval="0" timeout="120s" > primitive p_fs_shared ocf:heartbeat:Filesystem \ > params device="/dev/drbd/by-res/shared" directory="/shared" > fstype="ocfs2" \ > meta target-role="Started" \ > op monitor interval="10" > primitive p_ipmi_node1 stonith:external/ipmi \ > params hostname="node1" userid="admin" passwd="xxx" ipaddr="10.0.0.2" > interface="lanplus" > primitive p_ipmi_node2 stonith:external/ipmi \ > params hostname="node2" userid="admin" passwd="xxx" ipaddr="10.0.0.3" > interface="lanplus" > primitive p_libvirtd lsb:libvirt-bin \ > op monitor interval="120s" \ > op start interval="0" \ > op stop interval="0" > primitive p_o2cb ocf:pacemaker:o2cb \ > op start interval="0" timeout="90" \ > op stop interval="0" timeout="100" \ > op monitor interval="10" \ > meta target-role="Started" > group g_shared p_dlm_controld p_o2cb p_fs_shared > ms ms_drbd_shared p_drbd_shared \ > meta master-max="2" clone-max="2" notify="true" > ms ms_drbd_vm_1 p_drbd_vm_1 \ > meta master-max="2" clone-max="2" notify="true" > clone cl_libvirtd p_libvirtd \ > meta globally-unique="false" interlave="true" > clone cl_shared g_shared \ > meta interleave="true" > location l_ipmi_node1 p_ipmi_node1 -inf: node1 > location l_ipmi_node2 p_ipmi_node2 -inf: node2 > order o_drbd_before_shared inf: ms_drbd_shared:promote cl_shared:start > > Packages' versions: > clvm 2.02.95-7 > corosync 1.4.2-3 > dlm-pcmk 3.0.12-3.2+deb7u2 > drbd8-utils 2:8.3.13-2 > libdlm3 3.0.12-3.2+deb7u2 > libdlmcontrol3 3.0.12-3.2+deb7u2 > ocfs2-tools 1.6.4-1+deb7u1 > ocfs2-tools-pacemaker 1.6.4-1+deb7u1 > openais 1.1.4-4.1 > pacemaker 1.1.7-1 > > As this is my first serious set up suggestions are more than welcome. > > Thanks for your help. > > Oriol > -- > Oriol Mula Valls > Institut Català de Ciències del Clima (IC3) > Doctor Trueta 203 - 08005 Barcelona > Tel:+34 93 567 99 77 > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
