What is "pages paged in" and "pages paged out" in vmstat -s / sar -B and how does it relate to swapping?

Solution Unverified - Updated -

Issue

  • sar and vmstat output for pages paged in/out show high numbers, is this all swapping?
  • Could you let me know if these relatively few paging items indicated in vmstat output show if we have a problem?

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

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