How do I extend a LV and filesystem, as well as the underlying storage in conjunction with a lun expansion?

Solution Verified - Updated -

Issue

  • A LUN has been extended and we need to get the OS to recognize the new storage space
  • Both the block device and multipath devices need to be resized
  • We need to extend our pv, vg, and lv which are using the entire device, not partitions
  • We need to extend the filesystem
  • Underlying device of the PV has been extended from storage end. How to get the additional size reflected in the PV, VG.

Environment

  • Red Hat Enterprise Linux 5, 6, 7 &8
  • Filesystem: Ext2/3/4/xfs
  • LVM Physical Volume (PV) is on whole disk (no partitions)

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