Using mirrored Clustered LVM, LVM metadata randomely get overwritten
Issue
- An environment using mirroring in
Clustered LVM,LVM metadatarandomely gets overwritten and causesLVMto throwIncorrect metadata area header checksum, unknown deviceormissing PVs errors, which results in LVM to be inaccessible to Physical Volumes / Logical Volumes.
# lvs
Incorrect metadata area header checksum
# vgdisplay | egrep "missing|unknown"
There are 1 physical volumes missing.
PV Name unknown device
Environment
- Red Hat Enterprise Linux 5
- Red Hat Cluster Suite
- CLVMD and Mirrored Logical Volumes
- Over 255 device-mapper devices (LVM, multipath, etc.)
- cmirror version < cmirror-1.1.39-8.el5_5.1
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