Difference between revisions of "Agile testbed"
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=== Clustered LVM setup === | === Clustered LVM setup === | ||
| − | Red Hat's CLVM suite is a heavyweight high-availability system based on CMAN and depends on fencing of failing nodes. I've never been happy with it, especially since we lack a proper out-of-band way to do fencing from one node to another. After a couple of gruesome evenings kicking this around I found a better solution in [http://pixelchaos.net/2009/04/23/openais-an-alternative-to-clvm-with-cman/ openais]. This is based on building a quorum of nodes in order to do locking; the only processes required are corosync and clvmd. | + | [https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/High_Availability_Add-On_Overview/ch-cman.html Red Hat's CLVM suite] is a heavyweight high-availability system based on CMAN and depends on fencing of failing nodes. I've never been happy with it, especially since we lack a proper out-of-band way to do fencing from one node to another. After a couple of gruesome evenings kicking this around I found a better solution in [http://pixelchaos.net/2009/04/23/openais-an-alternative-to-clvm-with-cman/ openais]. This is based on building a quorum of nodes in order to do locking; the only processes required are corosync and clvmd. |
'''Do not use the service scripts in /etc/init.d/corosync or /etc/init.d/clvmd!''' | '''Do not use the service scripts in /etc/init.d/corosync or /etc/init.d/clvmd!''' | ||
