RHV: VM paused as a result of a thin provisioning soft threshold for a direct lun being reached on an external storage array

Solution In Progress - Updated -

Issue

  • VM paused when a soft threshold for thin provisioning was reached for a lun on an external storage array.

  • The messages file contained;

Feb  9 10:18:14 host04 kernel: sd 0:0:1:1: Warning! Received an indication that the LUN reached a thin provisioning soft threshold.
  • The vdsm logs contain;
2021-02-09 10:18:04,211-0500 INFO  (libvirt/events) [virt.vm] (vmId='376c9afb-9eac-4a62-b308-31dd1dc6bc83') abnormal vm stop device ua-6abe0b63-5b08-49e9-8fb4-63990e3e1341 error  (vm:4493)

Environment

  • Red Hat Virtualization (RHV) 4.4.2
  • Red Hat Enterprise (RHEL) 8.2 host;
    • libvirt-6.0.0-17.el8.x86_64
    • qemu-kvm-4.2.0-19.el8.x86_64
    • vdsm-4.40.22-1.el8.x86_64
  • Virtio-scsi direct lun with scsi passthrough enabled
  • Thinly-provisioned lun on external storage array

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