What is a recommended region size for mirrored lvm volumes

Solution Verified - Updated -

Issue

  • What is the recommended region size to use while creating mirror lvm volume of large size?
  • Does the region size used in creation of mirror lvm volume would have any impact on performance?
  • How to decide the region size for cluster mirror lvm volume of size up to 20 TB?
  • Potentially encountering error below:
Unable to convert vg1 to clustered mode: Mirror region size of lv1 is too small.

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • LVM 2

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