RHCS6: Clustered LVM
Article Number: 198 | Rating: Unrated | Last Updated: Sun, Jun 3, 2018 9:37 AM
RHCS: Clustered LVM
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# Tested on RHEL 6
# Clustered LVM allows us to use a regular LVM volume group and logical volume on shared # storage, making all the objects accessible to all cluster nodes at the same time. # Clustered LVM uses 'clvmd' daemon, responsible to propagate metadata changes to all # cluster nodes. # Please, take into account that unless you configure a cluster-aware filesystem (as GFS) # only one node should mount the filesystem at a time, otherwise LVM will not prevent you # from corrupting data. # To configure clustered LVM, all cluster nodes must be configured to use LVM clustered # locking. This can be done by either changing "locking-type" to '3' in /etc/lvm/lvm.conf # configuration file or by running: lvmconf --enable-cluster # 'clvmd' daemon must be enabled on all cluster nodes: chkconfig clvmd on service clvmd restart |
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