How to reduce the size of vmcore file?

Solution Verified - Updated -

Issue

  • Some systems have more than 32GB of memory. After configuring kdump, it will create a huge vmcore file, which make heavy offload on the network and storage. Is there some way to reduce the size of vmcore file?

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

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