mdadm created software raid volumes disappeared after reboot

Solution Unverified - Updated -

Issue

  • after reboot, software raid volumes no longer available, have disappeared
  • two md raid devices disappeared after boot
  • created via:
mdadm --create --verbose /dev/md2 --level=mirror --raid-devices=2 /dev/sdc /dev/sdd
mdadm --create --verbose /dev/md3 --level=10 --raid-devices=10 /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl /dev/sdm /dev/sdn

Environment

  • Red Hat Enterprise Linux 6

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