Why do data extents get created at unexpected physical addresses on my GFS2 filesystem?

Solution Verified - Updated -

Issue

When creating a file on a GFS2 filesystem and inspecting it in filefrag, many extents are created at different physical addresses than expected. Is this a sign of file fragmentation?

Environment

  • Red Hat Enterprise Linux 5 w/ Resilient Storage
  • Red Hat Enterprise Linux 6 w/ Resilient Storage
  • GFS2

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