LVM commands are failing with this error: Can't open exclusively. Mounted filesystem?

Solution Unverified - Updated -

Issue

  • LVM commands are failing with this error: Can't open exclusively. Mounted Filesystem?
  • A new disk partition created with parted is being accessed by something.
  • Cannot create a logical volume on a disk that is part of multipathed storage.

Environment

  • Red Hat Enterprise Linux 4 and 5
  • Logical Volume Management

  • Parted (optional, appears in cases involving large partitions)

  • Multipathing

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