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    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/MetroCluster_DR_mirroring_is_offline_with_one_port_of_a_node_being_down
      MetroCluster Mirror Down on one port of one node One port on one node is down with the mirror admin status being enabled. mcc-site1::> metrocluster interconnect show Mirror Mirror Node Partner Name Ty...MetroCluster Mirror Down on one port of one node One port on one node is down with the mirror admin status being enabled. mcc-site1::> metrocluster interconnect show Mirror Mirror Node Partner Name Type Status Status Adapter Type Status mcc-site1-01 mcc-site1-02 HA enabled online mcc8040-ams2-02 DR enabled online fcvi_device_0 FC-VI Down <== single port down mcc-site1-02 mcc-site1-01 HA enabled online mlx4_0 IB Up mcc8040-ams2-01 DR enabled online fcvi_device_0 FC-VI Up fcvi_device_1 FC-VI Up
    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/High_CPU_observed_on_Brocade_switch
      2021/12/01-07:34:12:275938, [MAPS-1002], 14131470/4797, FID 128, ERROR, SANSW02, Chassis, Condition=CHASSIS(CPU>80.00), Current Value:[CPU, 99.00 %], RuleName=CHASSIS_CPU_UTILIZATION, Dashboard Catego...2021/12/01-07:34:12:275938, [MAPS-1002], 14131470/4797, FID 128, ERROR, SANSW02, Chassis, Condition=CHASSIS(CPU>80.00), Current Value:[CPU, 99.00 %], RuleName=CHASSIS_CPU_UTILIZATION, Dashboard Category=Switch Resource., raslogAction.c, line: 170, comp:md, ltime:2021/12/01-07:34:12:275169
    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Direct_Attach_support_for_Stretch_MetroCluster_Configuration_with_NetApp_E-Series_array
      Stretch MetroCluster with both NetApp E-Series Array LUNs and NetApp native disks where NetApp Native Disks are connected via Optical SAS cables. Stretch MetroCluster with both NetApp E-Series Array L...Stretch MetroCluster with both NetApp E-Series Array LUNs and NetApp native disks where NetApp Native Disks are connected via Optical SAS cables. Stretch MetroCluster with both NetApp E-Series Array LUNs and NetApp native disks where NetApp Native Disks are connected via FC to SAS bridges. In a stretch MetroCluster configuration with NetApp E-Series Array LUNs, you must cable each controller's HBA ports to target ports on the corresponding NetApp E-Series Array Controllers.
    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Unable_to_detect_SnapMirror_or_SnapVault_relationship_after_MetroCluster_switchover
      Applies to ONTAP 9 MetroCluster (MCC) SnapMirror Issue SnapMirror destination information is missing after Switchover or Switchback in the Metrocluster (i.e. on ONTAP Upgrades), for example: After Sit...Applies to ONTAP 9 MetroCluster (MCC) SnapMirror Issue SnapMirror destination information is missing after Switchover or Switchback in the Metrocluster (i.e. on ONTAP Upgrades), for example: After Site A does a 'switchover' of Site B the snapmirror list-destinations the command does not find any of its SnapMirror relationships.
    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/How_to_troubleshoot_optical_SAS_cable_issues
      Applies to Streched MetroCluster ONTAP 9 ONTAP 8 Description This article describes how to troubleshoot optical SAS cable issues
    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/How_to_fix_a_mirror_degraded_system
      Applies to MetroCluster ONTAP 9 ONTAP 8 SyncMirror degraded Description Mirror degraded indicates that an aggregate that was configured as a mirrored aggregate is not mirrored any more. This article d...Applies to MetroCluster ONTAP 9 ONTAP 8 SyncMirror degraded Description Mirror degraded indicates that an aggregate that was configured as a mirrored aggregate is not mirrored any more. This article describes the procedure to be followed to fix a mirror degraded system.
    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/How_to_collect_a_core_file_from_an_ATTO_7500N_7600N_in_9.3_and_later
      Applies to ATTO 7600N ATTO 7500N ONTAP 9.3+ Description This article describes how to collect log files from an ATTO 7500N/7600N FibreBridge in 9.3 and later In-band management does not need to be con...Applies to ATTO 7600N ATTO 7500N ONTAP 9.3+ Description This article describes how to collect log files from an ATTO 7500N/7600N FibreBridge in 9.3 and later In-band management does not need to be configured for the data collection to be executed in-band
    • https://kb.netapp.com/on-prem/ontap/DM/System_Manager/SM-KBs/System_Manager__Metrocluster_mediator_is_not_visible_on_one_side_of_the_metrocluster
      Applies to OnCommand System Manager 9.8 Metrocluster based on IP connection Issue On one side of the metrocluster, the mediator is not visible on the Metrocluster card within the System Manager dashbo...Applies to OnCommand System Manager 9.8 Metrocluster based on IP connection Issue On one side of the metrocluster, the mediator is not visible on the Metrocluster card within the System Manager dashboard page On the other side of the metrocluster it is visible without issues
    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/How_to_monitor_Aggregate_Space_when_a_SyncMirror_is_not_updating
      A mirrored aggregate can run out of space if the SyncMirror is in a degraded state and the aggregate is near capacity. RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --...A mirrored aggregate can run out of space if the SyncMirror is in a degraded state and the aggregate is near capacity. RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks) --------- ------ ------------- ---- ---- ---- ----- -------------- -------------- dparity FAILED N/A 3807816/ - parity FAILED N/A 3807816/ - data FAILED N/A 3807816/ - Raid group is missing 3 disks.
    • https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/DR_Config_Replication_alert_due_to_a_missing_license
      DR Config Replication alert DR Config Replication Failed alert is sent due to a license missing: Error: You do not have a valid license for "xxx". Reason: Package "xxx" is not licensed in the cluster ...DR Config Replication alert DR Config Replication Failed alert is sent due to a license missing: Error: You do not have a valid license for "xxx". Reason: Package "xxx" is not licensed in the cluster [mgwd: vsdr.invalid.license:debug]: Configuration replication on vserver VserverName failed due to an invalid license for package PackageName Install the PackageName license from the Security and Compliance Bundle using the "system license add -license-code <license-code>"
    • https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Cannot_enable_Vscan_in_a_MetroCluster_-_No_scanner_pool_is_active_on_the_Vserver
      Applies to ONTAP 9 MetroCluster VSCAN Issue The following error occurs when attempting to turn on Vscan: Node01::> vscan enable svm01 (vserver vscan enable) Error: command failed: Cannot enable Vscan....Applies to ONTAP 9 MetroCluster VSCAN Issue The following error occurs when attempting to turn on Vscan: Node01::> vscan enable svm01 (vserver vscan enable) Error: command failed: Cannot enable Vscan. Reason: No scanner pool is active on the Vserver "svm01".