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    • VMware shows inaccurate space compared to storage when using thin provisioning
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/ONTAP__thin_volume_VMware_Datastore_shows_more_space_used_than_expected
      Deleting files or VMs on VMware does not return space to the LUN or volume, and the space shows as full. Sun Jul 21 05:31:59 +0800 [NetApp-01: VdomFSMThr_06: LUN.out.of.space:EMERGENCY]: LUN /vol/vol1...Deleting files or VMs on VMware does not return space to the LUN or volume, and the space shows as full. Sun Jul 21 05:31:59 +0800 [NetApp-01: VdomFSMThr_06: LUN.out.of.space:EMERGENCY]: LUN /vol/vol1/lun1, vol vol1 (DSID 10xx) is out of space (UUID: f53f44f5-b2b2-4b7d-9d8e-595e128xxxx). Sun Jul 21 05:49:43 +0800 [NetApp-01: wafl_exempt01: wafl.spacemgmnt.policyChg:notice]: The space management policy for volume volnetapp has changed: autosize volume maximum size 322122547200KB.
    • ONTAP and Windows SCSI unmap and space reclamation
      https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/ONTAP_and_Windows_SCSI_unmap_and_space_reclamation
      FAQs on ONTAP and Windows SCSI unmap and space reclamation
    • Windows host does not auto-reclaim unused space for thin provisioned luns
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Windows_host_does_not_auto-reclaim_unused_space_for_thin_provisioned_luns
      Applies to ONTAP 9 Windows Issue Windows host operating system does not reclaim space automatically. It is possible to free up space manually.