What is the message "sd X:X:X:X: Warning! Received an indication that the LUN reached a thin provisioning soft threshold."

Solution Unverified - Updated -

Issue

  • The following message are logged in /var/log/messages:
kernel: sd 6:0:0:2: Warning! Received an indication that the LUN reached a thin provisioning soft threshold.

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • SCSI device

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