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    • X1146A ports not coming online
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/X1146A_ports_not_coming_online
      ::> system node run -node NodeA -command sysconfig -ac sysconfig: slot 1 OK: X1146A: Dual 40/100G Ethernet T62100-CR sysconfig: slot 2 OK: X1146A: Dual 40/100G Ethernet T62100-CR sysconfig: slot 3 OK:...::> system node run -node NodeA -command sysconfig -ac sysconfig: slot 1 OK: X1146A: Dual 40/100G Ethernet T62100-CR sysconfig: slot 2 OK: X1146A: Dual 40/100G Ethernet T62100-CR sysconfig: slot 3 OK: X1146A: Dual 40/100G Ethernet T62100-CR sysconfig: No shelf configuration errors detected.
    • Can MetroCluster IP backend switches set MTU value as 9000 or less ?
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Can_MetroCluster_IP_backend_switches_set_MTU_value_as_9000_or_less
      Applies to MetroCluster IP Answer No, the MTU of 9216 must be configured on all switches that carry MetroCluster IP traffic If set as 9000 or less, it will result in intermittent RDMA(iWARP) connectio...Applies to MetroCluster IP Answer No, the MTU of 9216 must be configured on all switches that carry MetroCluster IP traffic If set as 9000 or less, it will result in intermittent RDMA(iWARP) connection problems Additional Information Considerations for using MetroCluster-compliant switches
    • How do I register for Cisco Smart Net Total Care portal access?
      https://kb.netapp.com/on-prem/Switches/Cisco-KBs/How_do_I_register_for_Cisco_Smart_Net_Total_Care_portal_access
      Cisco.com account (CCOID) associated with Smart Net Total Care support contract The SmartNet portal allows you to see End-of-Life information, support coverage, alerts, and reports for your devices. H...Cisco.com account (CCOID) associated with Smart Net Total Care support contract The SmartNet portal allows you to see End-of-Life information, support coverage, alerts, and reports for your devices. How do I associate my Cisco.com account (CCOID) to a Smart Net Total Care contract? How do I create a Cisco.com account (CCOID)? Support for Smart Net Total Care Cisco Smart Net Total Care Portal Administration and Management Cisco Smart Net Total Care Portal Troubleshooting Guide
    • Unable to complete cluster setup in a MetroCluster IP
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Unable_to_complete_cluster_setup_in_a_MetroCluster_IP
      Applies to MetroCluster IP Issue A cluster setup fails with an error: Starting cluster support services Error: Not all local cluster ports have reachability to one another. Use the "network port reach...Applies to MetroCluster IP Issue A cluster setup fails with an error: Starting cluster support services Error: Not all local cluster ports have reachability to one another. Use the "network port reachability show -detail" command for more details.
    • How to create a case with Cisco Support
      https://kb.netapp.com/on-prem/Switches/Cisco-KBs/How_to_create_a_case_with_Cisco_Support
      Applies to Cisco MDS Multilayer Fabric (SAN) switches purchased via NetApp Cisco Nexus Ethernet switches purchased via NetApp Description Before raising a case with Cisco Technical Assistance Center (...Applies to Cisco MDS Multilayer Fabric (SAN) switches purchased via NetApp Cisco Nexus Ethernet switches purchased via NetApp Description Before raising a case with Cisco Technical Assistance Center (TAC), have the following information available: Collect #show tech-support Cisco account username (CCOID) that is associated to the switch support contract Cisco device serial number Cisco Contract ID
    • Stale vlan ID still shows up during a new setup of MetroCluster IP
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Stale_vlan_ID_still_shows_up_during_a_new_setup_of_MetroCluster_IP
      Applies to MetroCluster IP (MCCIP) ONTAP 9 Issue The default VLAN ID (vlan10 and vlan 20) is used when initially installing MCCIP using System Manager The MCCIP is then initialized and re-setup with a...Applies to MetroCluster IP (MCCIP) ONTAP 9 Issue The default VLAN ID (vlan10 and vlan 20) is used when initially installing MCCIP using System Manager The MCCIP is then initialized and re-setup with a custom VLAN id. MCCIP setup (metrocluster configuration-settings interface create ) failed because the stale vlan ID still shows up Note: Set-defaults , 9a) cleaning disk, and 4) init ontap are already been done, but the problem persists.
    • Option 6 resets ha-config from mcc or mccip to ha during boot_recovery process in 4-node MetroCluster
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Option_6_resets_ha-config_from_mcc_or_mccip_to_ha_during_boot_recovery_process_in_4-node_MetroCluster
      During a maintenance that requires the boot_recovery procedure to be performed (ARL headswap, boot device replacement) on an AFF A400 or FAS8300 running 9.7.X in a 4-node Metrocluster configuration, t...During a maintenance that requires the boot_recovery procedure to be performed (ARL headswap, boot device replacement) on an AFF A400 or FAS8300 running 9.7.X in a 4-node Metrocluster configuration, the backup configuration file must be restored onto the new boot media prior to booting back into ONTAP on the affected node.
    • MetroCluster IP: Head Upgrade from A800 to A900 fails
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/MetroCluster_IP__Head_Upgrade_from_A800_to_A900_fails
      Applies to MetroCluster IP Unsupported head upgrade A800 to A900 Issue Tech refresh from an A800 to A900 is stuck
    • Remote disk and plex failures after MetroCluster IP RCF upgrade
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/Remote_disk_and_plex_failures_after_MetroCluster_IP_RCF_upgrade
      cf.disk.skipped:notice]: The disk 0m.i1.0L2 was skipped because it reported the status adapter error prevents command from being sent to device. cf.disk.skipped:notice]: The disk 0m.i1.0L9 was skipped...cf.disk.skipped:notice]: The disk 0m.i1.0L2 was skipped because it reported the status adapter error prevents command from being sent to device. cf.disk.skipped:notice]: The disk 0m.i1.0L9 was skipped because it reported the status adapter error prevents command from being sent to device. cf.disk.skipped:notice]: The disk 0m.i2.3L25 was skipped because it reported the status adapter error prevents command from being sent to device.
    • MCCIP fail to assign disk automatically with error "BOOTMGR: If the disk shelves are partially populated"
      https://kb.netapp.com/on-prem/ontap/mc/MC-KBs/MCCIP_fail_to_assign_disk_automatically_with_error_BOOTMGR__If_the_disk_shelves_are_partially_populated
      During 4-node MetroCluster IP initial installation, after performing option ‘9a’ to unown all disks and use the option "9c" to initialize/auto-assign disk. BOOTMGR:If the disk shelves are partially po...During 4-node MetroCluster IP initial installation, after performing option ‘9a’ to unown all disks and use the option "9c" to initialize/auto-assign disk. BOOTMGR:If the disk shelves are partially populated, Followbest practice guidelines to populate disks in the right slots May 2321:51:14 [localhost:cf.fm.noMBDisksOrIc:error]: Could not find the localmailbox disks. Could not determine the firmware state of the partner throughthe HA interconnect. The disk shelf has been fully populated
    • High NVRAM transfer latency on MetroCluster IP
      https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/High_NVRAM_transfer_latency_on_MetroCluster_IP
      Applies to ONTAP 9 MetroCluster IP AFF A220 AFF A250 Remote direct memory access (RDMA) Internet Wide Area RDMA Protocol (iWARP) Issue High latency on NFS/CIFS Volumes up to 10ms+ High NVRAM transfer ...Applies to ONTAP 9 MetroCluster IP AFF A220 AFF A250 Remote direct memory access (RDMA) Internet Wide Area RDMA Protocol (iWARP) Issue High latency on NFS/CIFS Volumes up to 10ms+ High NVRAM transfer latency on AFF A220 and AFF A250 nodes configured as MetroCluster IP Increased latency observed on WRITE operations post ONTAP upgrade Data analysis shows high iWARP latency