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linux:clvm [2015/10/30 11:13] vondra [Installation (Debian Jessie)] |
linux:clvm [2015/11/06 16:02] (current) vondra [Removing node from the cluster] |
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| ====== Cluster LVM ====== | ====== Cluster LVM ====== | ||
| + | sources: | ||
| + | |||
| + | [[https://www.suse.com/documentation/sle_ha/book_sleha/data/sec_ha_clvm_config.html]] | ||
| + | |||
| + | [[https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Cluster_Administration/s1-admin-manage-nodes-delete-add-cli-CA.html]] | ||
| + | |||
| + | [[https://www.ibm.com/developerworks/community/blogs/mhhaque/resource/RHCS_IBM_POWER.pdf?lang=zh]] | ||
| ===== Installation (Debian Jessie) ===== | ===== Installation (Debian Jessie) ===== | ||
| - install necessary packages:<code bash> | - install necessary packages:<code bash> | ||
| Line 9: | Line 16: | ||
| - set no wait time for quorum:<code bash>echo "CMAN_QUORUM_TIMEOUT=0" >> /etc/default/cman</code> | - set no wait time for quorum:<code bash>echo "CMAN_QUORUM_TIMEOUT=0" >> /etc/default/cman</code> | ||
| - create config file /etc/cluster/cluster.conf and put it to all nodes:<code xml> | - create config file /etc/cluster/cluster.conf and put it to all nodes:<code xml> | ||
| - | <cluster name="mycluster" config_version="2"> | + | <cluster name="mycluster" config_version="1"> |
| <clusternodes> | <clusternodes> | ||
| <clusternode name="10.0.0.23" nodeid="1"> | <clusternode name="10.0.0.23" nodeid="1"> | ||
| Line 45: | Line 52: | ||
| - create mirrored lvm:<code bash> | - create mirrored lvm:<code bash> | ||
| lvcreate -n testovaci_lv -m1 -L 1.0g guma_cerna --nosync</code>(--nosync means that data will not be synced upon creating - since the lv should not contain any data upon its creating its OK) | lvcreate -n testovaci_lv -m1 -L 1.0g guma_cerna --nosync</code>(--nosync means that data will not be synced upon creating - since the lv should not contain any data upon its creating its OK) | ||
| + | - (optional) check that the volume were created succesfully on both SANs:<code bash> | ||
| + | lvs -a -o +devices</code> | ||
| + | |||
| + | ===== Adding/deleting node from cluster ===== | ||
| + | - If deleting stop all cluster services on node e.g.:<code bash> | ||
| + | service stop clvm | ||
| + | service stop cman</code> | ||
| + | - install cman clvm on new node(s) - don't forget to setup the /etc/lvm/lvm.conf file | ||
| + | - attach SANs on new node(s) | ||
| + | - edit the /etc/cluster/cluster.conf and increase serial:<code xml> | ||
| + | <cluster name="mycluster" config_version="2"> | ||
| + | <clusternodes> | ||
| + | <clusternode name="10.0.0.23" nodeid="1"> | ||
| + | <fence> | ||
| + | </fence> | ||
| + | </clusternode> | ||
| + | <clusternode name="10.0.0.112" nodeid="2"> | ||
| + | <fence> | ||
| + | </fence> | ||
| + | </clusternode> | ||
| + | <clusternode name="10.0.0.110" nodeid="3"> | ||
| + | <fence> | ||
| + | </fence> | ||
| + | </clusternode> | ||
| + | </clusternodes> | ||
| + | <fencedevices> | ||
| + | </fencedevices> | ||
| + | <rm> | ||
| + | </rm> | ||
| + | </cluster></code> | ||
| + | - distribute the file to ALL nodes in cluster and issue following command from any node:<code bash>cman_tool version -r -S</code> | ||
| + | - to use previously created volumes those must be activated on new node:<code bash> | ||
| + | lvchange -a y /dev/guma_cerna/testovaci_lv</code> | ||
| + | ===== Removing node from the cluster ===== | ||
| + | - stop all cluster services and then stop cman service with parameter leave<code bash> | ||
| + | service clvm stop | ||
| + | service cman stop leave | ||
| + | </code> | ||
linux/clvm.1446199982.txt.gz · Last modified: 2015/10/30 11:13 by vondra