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    • https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/User_sends_reset_packet_after_Negotiate_Protocol_Request_from_the_storage_system
      Fri Nov 24 12:56:16 GMT [filer1:cifs.server.errorMsg:error]: CIFS: Error for server \\DC1: Error while negotiating protocol with server STATUS_IO_TIMEOUT. Fri Nov 24 12:56:46 GMT [filer1:cifs.server.e...Fri Nov 24 12:56:16 GMT [filer1:cifs.server.errorMsg:error]: CIFS: Error for server \\DC1: Error while negotiating protocol with server STATUS_IO_TIMEOUT. Fri Nov 24 12:56:46 GMT [filer1:cifs.server.errorMsg:error]: CIFS: Error for server \\DC2: Error while negotiating protocol with server STATUS_IO_TIMEOUT. Fri Nov 24 12:57:16 GMT [filer1:cifs.server.errorMsg:error]: CIFS: Error for server \\DC3: Error while negotiating protocol with server STATUS_IO_TIMEOUT.
    • https://kb.netapp.com/Legacy/ONTAP/7Mode/How_to_add_larger_capacity_disks_to_a_RAID_group_that_contains_smaller_capacity_disks
      Applies to Data ONTAP 8.2 7-Mode Data ONTAP 8.1 7-Mode Data ONTAP 8 7-Mode Data ONTAP 7 and earlier Description Adding larger capacity disks to a RAID group that contains smaller capacity disks. Disks...Applies to Data ONTAP 8.2 7-Mode Data ONTAP 8.1 7-Mode Data ONTAP 8 7-Mode Data ONTAP 7 and earlier Description Adding larger capacity disks to a RAID group that contains smaller capacity disks. Disks with different capacities within a RAID group. Using a larger spare to replace a failed disk in a RAID group.
    • https://kb.netapp.com/on-prem/ontap/DM/VAAI/VAAI-KBs/What_VAAI_offloaded_operations_are_supported_by_Data_ONTAP
      Note: To add support for NFS VAAI operations, install the Netapp NFS Plug-in for VMware VAAI on the ESXi host(s). Once the plugin is installed, Data ONTAP can be configured to support the following VA...Note: To add support for NFS VAAI operations, install the Netapp NFS Plug-in for VMware VAAI on the ESXi host(s). Once the plugin is installed, Data ONTAP can be configured to support the following VAAI operations on NFS storage: When performing a copy offload operation on NFS datastores backed by Data ONTAP 8.2.1 7-Mode, copy offload fails to clone files greater than 64GB within the same single-instance storage (SIS) enabled volume.
    • https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/What_is_the_information_reported_by_the_fcp_stats_command
      KBytes In: The count of KiloBytes of data that has been received by the adapter. Kbytes Out: The count of KiloBytes of data that has been sent by the adapter. FCF Ad Timeouts: The number of times that...KBytes In: The count of KiloBytes of data that has been received by the adapter. Kbytes Out: The count of KiloBytes of data that has been sent by the adapter. FCF Ad Timeouts: The number of times that the virtual adapter has sent FCF Advertisements without receiving a response in an acceptable amount of time. Adapter Qfulls: The number of SCSI queue full responses generated by the adapter. Vendor Name: The name of the vendor for the SFP.
    • https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/How_to_troubleshoot_SMB_Signing_on_a_NetApp_Storage_Controller
      SMB Signing is a feature in CIFS that adds a digital signature to a packet transferred between clients and servers. The failure of a client and server properly negotiating the need or requirement for ...SMB Signing is a feature in CIFS that adds a digital signature to a packet transferred between clients and servers. The failure of a client and server properly negotiating the need or requirement for SMB Signing can result in an unsuccessful connection to a CIFS share. At the end of the article is a walk-through on how to review a packet trace to determine if SMB Signing is causing an issue with initial share connection.
    • https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/How_to_create_and_apply_schedules_to_SnapMirror_SnapVault_relationships_in_Data_ONTAP
      Applies to ONTAP 9 Data ONTAP 8.2 7-Mode Description How to create and apply schedules to SnapMirror/SnapVault relationships in Data ONTAP
    • https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Does_ONTAP_support_SMB_multichannel
      SMB Multichannel features are supported starting in ONTAP 9.4 SMB Multichannel features are NOT supported in any ONTAP release before ONTAP 9.4 SMB Multichannel - Provides multiple connections between...SMB Multichannel features are supported starting in ONTAP 9.4 SMB Multichannel features are NOT supported in any ONTAP release before ONTAP 9.4 SMB Multichannel - Provides multiple connections between ONTAP and clients in a single SMB session. Doing so improves throughput and fault tolerance for Hyper-V and SQL server over SMB configurations. SMB Multichannel may be nondisruptively applied to an existing SVM in ONTAP 9.4 and later Configuring SMB Multichannel for performance and redundancy
    • https://kb.netapp.com/Legacy/ONTAP/7Mode/How_to_set_up_and_troubleshoot_Widelinks_on_a_Netapp_7-mode_Storage_Controller
      The following examples illustrate how to create a symlink from volume to qtree on the same filer, and from volume to volume on different filers. Share the qtree for the CIFS client, turn on support fo...The following examples illustrate how to create a symlink from volume to qtree on the same filer, and from volume to volume on different filers. Share the qtree for the CIFS client, turn on support for widelinks in the share which will contain the symlink: Use a UNIX client to create the target file and to create the symlink which will be used to point to it.
    • https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Active_IQ_Wellness__Up_to_High_Impact_This_system_is_reporting_a_high_average_CPU_utilization
      As the utilization of the system increases as measured by CPU utilization, the latency of I/O operations may increase which might result in impact to performance of applications using the systems. If ...As the utilization of the system increases as measured by CPU utilization, the latency of I/O operations may increase which might result in impact to performance of applications using the systems. If CPU utilization is consistently above 60% per node (If ONTAP release is 7-Mode or 9.6 or earlier) or 70% per node (if ONTAP release is 9.7 or later) the recommendation would be to review workloads and relocate workloads to less busy nodes.
    • https://kb.netapp.com/Legacy/ONTAP/7Mode/How_to_repurpose_a_Data_ONTAP_8.1.x_or_later_7-Mode_node_to_ONTAP_9
      How to convert 7-Mode empty node to ONTAP 9
    • https://kb.netapp.com/Legacy/ONTAP/7Mode/How_to_create_a_sync_core_in_Data_ONTAP_7_mode_from_a_hanging_unresponsive_storage_system
      This article describes the procedure that should be followed to obtain a sync core from a hanging/unresponsive storage system. There are several different methods of initiating a user-generated core d...This article describes the procedure that should be followed to obtain a sync core from a hanging/unresponsive storage system. There are several different methods of initiating a user-generated core depending upon which NetApp storage system model you have. A user-generated core should only be initiated at the direction of NetApp Technical Support A sync core requires additional details about the reasons for forcing a panic before it can be analyzed