panic: lv_fixrootlv: Stale extent array overflow
cause: volume group header and /etc/lvmtab out of sync when logical volumes are mirrored.
fix:
- boot into lvm maintenance mode: hpux -lm
- activate vg00: vgchange -a y vg00
- vgdisplay vg00 -- shows 3 current PV and 2 Active PV (or whatever the discrepancy is)
- unmirror logical volumes:
- for i in 1 2 3 4 5 6 7 8 9
- do
- lvreduce -A n -m 0 /dev/vg00/lvol$i
- done
- vgreduce -f vg00
- now vgdisplay vg00 shows the same number of current and active PV
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