How to persistently change the cache tunables ?

Solution Unverified - Updated -

Issue

  • Cache tunables can be set with the command line arguments "message" to dmsetup.
dmsetup message vg02-jetcache_lv 0 write_promote_adjustment 0
  • However, upon reboot, the write_promote_adjustment value will go back to the value it was before it was set to 0.

Environment

  • Red Hat Enterprise Linux(RHEL) 7

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