When manually scanning for new LUNs, running multipath, and starting clvmd immediately after, not all volume groups are found in RHEL 5
Issue
- Why were all VGs not detected after a multipath flush and LUN scan?
- The issue was that at a given time, out of all LUNs visible in the node, only some of them had the Volume Groups initiated/present.
Environment
- Red Hat Enterprise Linux (RHEL) 5 with the Resilient Storage Add On
lvm2-clusterlocking_type = 3in/etc/lvm/lvm.conf- One or more volume groups with the clustered attribute set
- Using a procedure that runs
multipathand then quickly startsclvmdafterwards- Typically involving an environment with a large number of storage devices
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