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    • iSCSI LUNs in a portset not visible after upgrade to 9.5
      https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/iSCSI_LUNs_in_a_portset_not_visible_after_upgrade_to_9.5
      Applies to ONTAP 9.3P13 and greater ONTAP 9.4P8 and greater ONTAP 9.5 Issue After stepped upgrades from ONTAP 9.1 to 9.7 Microsoft cluster servers are unable to see iSCSI LUNs
    • What does ONTAP do with available IDLE cycles on the storage controller?
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/What_does_ONTAP_do_with_available_IDLE_cycles_on_the_storage_controller
      ONTAP is opportunistic, when there are available IDLE CPU cycles (IDLE time), instead of wasting the IDLE time, ONTAP can and will use as much of the available time as possible to run background and s...ONTAP is opportunistic, when there are available IDLE CPU cycles (IDLE time), instead of wasting the IDLE time, ONTAP can and will use as much of the available time as possible to run background and scheduled tasks such as: This increased latency is expected since the storage system becomes busy with work it is doing in the background (by design), when the work is complete, utilization and latency can drop back to the normal levels.
    • All the source snapshots are not being transferred to the destination with SnapMirror
      https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/All_the_source_snapshots_are_not_being_transferred_to_the_destination_with_SnapMirror
      Applies to ONTAP 9 SnapMirror Issue All the source snapshots are not being transferred to the destination after changing the SnapMirror policy from MirrorAndVault to MirrorAllSnapshots
    • How to reboot a cluster interconnect switch
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/How_to_reboot_a_cluster_interconnect_switch
      Applies to ONTAP Cluster interconnect switches NetApp CN1610 Broadcom BES-53248 Cisco Nexus 3132Q-V Cisco Nexus 3232C Cisco Nexus 5596 Cisco Nexus 92300YC Cisco Nexus N9K-C9336C-FX2 Description How to...Applies to ONTAP Cluster interconnect switches NetApp CN1610 Broadcom BES-53248 Cisco Nexus 3132Q-V Cisco Nexus 3232C Cisco Nexus 5596 Cisco Nexus 92300YC Cisco Nexus N9K-C9336C-FX2 Description How to reboot a cluster interconnect switch.
    • Why doesn't Volume Capacity Increase from ONTAP show the increment in the free space?
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Why_doesn_t_Volume_Capacity_Increase_from_ONTAP_show_the_increment_in_the_free_space
      Applies to ONTAP 9 NetApp OnCommand System Manager Answer The Tier (formerly known as Aggregates) does not have sufficient Free space to honor the Free capacity of the volume. The maximum we can write...Applies to ONTAP 9 NetApp OnCommand System Manager Answer The Tier (formerly known as Aggregates) does not have sufficient Free space to honor the Free capacity of the volume. The maximum we can write to a volume that’s provisioned larger than the Tier is the Tier’s Free Space, so that’s what is presented. Additional Information additionalInformation_text
    • Can I use  Fan-out to migrate an Identity preserve SVM-DR to a new Cluster?
      https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/Can_I_use__Fan-out_to_migrate_an_Identity_preserve_SVM_DR_to_a_new_Cluster
      Applies to In ONTAP 9.3 and earlier, only one identity-preserve true relationship is allowed per source-SVM Starting with ONTAP 9.4, SVM-DR allows fanout to two destinations, with considerations Use v...Applies to In ONTAP 9.3 and earlier, only one identity-preserve true relationship is allowed per source-SVM Starting with ONTAP 9.4, SVM-DR allows fanout to two destinations, with considerations Use volume SnapMirror to migrate the data to an SVM of the New Cluster Break and release the original SVM-DR Convert the new volume SnapMirror to SVM-DR Converting volume replication relationships to an SVM replication relationship SVM-DR cannot create the second destination relationship
    • VSS Backups failing with error message Failed to create VSS snapshot
      https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/VSS_Backups_failing_with_error_message_Failed_to_create_VSS_snapshot
      Applies to Ontap 9.x FAS Systems Issue VSS backups are failing when snapshot creation takes more than 10 seconds VSS will freeze IO operations in order to take a consistent snapshot In EMS logs the fo...Applies to Ontap 9.x FAS Systems Issue VSS backups are failing when snapshot creation takes more than 10 seconds VSS will freeze IO operations in order to take a consistent snapshot In EMS logs the following errors are shown: Activity [Creating Backup] failed with error: Failed to create VSS snapshot [Error Code: -2147212524] [VSS_E_HOLD_WRITES_TIMEOUT] [Error Code: -2147212524] [VSS_E_HOLD_WRITES_TIMEOUT]
    • SnapMirror update fails randomly with CSM error: Operation referred to a non-existent session
      https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/SnapMirror_update_fails_randomly_with_CSM_error__Operation_referred_to_a_non_existent_session
      SnapMirror update from source volume 'SVM01:vol1' to destination volume 'svm_dst:vol2' failed with error 'Transfer failed.(Replication operation request failed from Cluster Id: xxxxxxxx-xxxx-xxxx-xxxx...SnapMirror update from source volume 'SVM01:vol1' to destination volume 'svm_dst:vol2' failed with error 'Transfer failed.(Replication operation request failed from Cluster Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx, Node Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx to Cluster Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx, Node Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx due to a network error(CSM: Operation referredto a non-existent session.))'. Relationship UUID 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx'.
    • Operational status of the LIF reporting down when hosted on one of the Node in Cluster
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Operational_status_of_the_LIF_reporting_down_when_hosted_on_one_of_the_Node_in_Cluster
      Applies to When the LIF is hosted on Node-A01 the admin and operational status is reporting UP, but the same LIF when migrated/reverted to Node-A02, the operational status is reporting down with below...Applies to When the LIF is hosted on Node-A01 the admin and operational status is reporting UP, but the same LIF when migrated/reverted to Node-A02, the operational status is reporting down with below error message, Error: This LIF is down because Vserver status is not yet available on node "Node-A01". Wait a few minutes, then check the LIF's status again. Destroying the LIF and re-creating the LIF also fails on Node-A02, and the new LIF also reports operational status as down.
    • SnapMirror create or initialize fail with "entry doesn't exist"
      https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/SnapMirror_create_or_initialize_fail_with_entry_doesn_t_exist
      Applies to ONTAP 9 Issue SnapMirror create fails with command failed (entry doesn't exist) SnapMirror initilize fails with volume not found (entry doesn't exist)
    • On system reboot, node is reporting "Disk auto-partitioning is disabled on this system: ADP DISABLED."
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/On_every_node_reboot_system_is_reporting_ADP_DISABLED
      On every node reboot, system reports ADP DISABLED and also generates an Autosupport with the event, even if the system is configured with ADP. Mar 03 11:05:00 [Node-A:raid.autoPart.disabled:ALERT]: Di...On every node reboot, system reports ADP DISABLED and also generates an Autosupport with the event, even if the system is configured with ADP. Mar 03 11:05:00 [Node-A:raid.autoPart.disabled:ALERT]: Disk auto-partitioning is disabled on this system: the system needs a minimum of 8 usable internal hard disks. Mar 03 11:05:00 [Node-A:callhome.raid.adp.disabled:ALERT]: Disk auto-partitioning is disabled on this system: ADP DISABLED.