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    • Do space utilization considerations for ONTAP upgrade apply to root aggregates?
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Do_space_utilization_considerations_for_ONTAP_upgrade_apply_to_root_aggregates
      Root Aggregate space utilization No, the space consideration apply to deduplicated volumes/aggregates only. The root volume and aggregate should not contain any user data and do not have deduplication...Root Aggregate space utilization No, the space consideration apply to deduplicated volumes/aggregates only. The root volume and aggregate should not contain any user data and do not have deduplication enabled. The root aggregate is created with 95% utilization by design, as it contains the root volume (vol0), that has space guarantees enabled (thick provisioned). Root aggregate with 95-99% utilization should not prevent a successful upgrade nor cause the deduplication to be disabled.
    • Linux host reporting different space utilization than ONTAP
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Linux_host_reporting_different_space_utilization_than_ONTAP
      Applies to ONTAP 9 Linux Space Utilization Issue Linux host reporting different space utilization than ONTAP.
    • Why is the used percentage different in Linux from the one in NetApp?
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Why_is_the_used_percentage_different_in_Linux_from_the_one_in_NetApp
      In Netapp, the volume size is: Available size + Netapp used size + over provisioned size. In Linux, the volume size is: Available size + Linux used size. Linux used size = Netapp used size + over prov...In Netapp, the volume size is: Available size + Netapp used size + over provisioned size. In Linux, the volume size is: Available size + Linux used size. Linux used size = Netapp used size + over provisioned size. Vserver Volume Aggregate State Type Size Available Used% The Netapp used size percentage is therefore 331/480= 69%. Linux used size = Netapp used size + over provisioned size = 331TB + 84TB = 415TB. The Linux used size percentage is therefore 415/480 =86%:
    • Space usage difference between 2 StorageGRID sites
      https://kb.netapp.com/hybrid/StorageGRID/Object_Mgmt/Space_usage_difference__between_2_StorageGrid_sites
      Applies to NetApp StorageGRID 11.x Issue Space usage difference seen between 2 StorageGRID sites with the same amount of data ingested and default ILM rule (2 copy balanced)
    • Unified Manager reports Aggregate is Overcommitted, How to verify in ONTAP
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/OCUM_reports_Aggregate_is_Overcommitted_How_to_verify_in_ONTAP
      OnCommand Unified Manager Active IQ Unified Manager Unified Manager notification received. Trigger Condition - The overcommitted threshold set at 100% is breached. 121.07 TB (222.49%) of 54.42 TB is c...OnCommand Unified Manager Active IQ Unified Manager Unified Manager notification received. Trigger Condition - The overcommitted threshold set at 100% is breached. 121.07 TB (222.49%) of 54.42 TB is committed. Description - This alert will trigger when the aggregate has had more space allocated to volumes than the amount of usable space in the aggregate (or is close to using more space) Type RW volumes consider Maximum Autosize (If -autosize-mode is off, use the total volume size)