How do I customize /etc/multipath.conf on my RHV-H hypervisors? What values must not change and wny?

Solution In Progress - Updated -

Issue

  • Some SAN vendors require special values in /etc/multipath.conf and offer a suggested template.
  • VDSM and RHV-H use a Red-Hat defined multipath.conf.
  • What is the best way to merge the VDSM-generated /etc/multipath.conf with SAN vendor settings?
  • What Red Hat values must not be changed?

Environment

  • Red Hat Virtualization hypervisor version 4.y

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