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What are the effects of options ip.ping_throttle.drop_level 0 on system environment?
https://kb.netapp.com/Legacy/ONTAP/7Mode/What_are_the_effects_of_options_ip_ping_throttle_drop_level_0_on_system_environment
What are the effects of options ip.ping_throttle.drop_level 0 on the system environment? The ping throttling mechanism was introduced to mitigate risks from denial of service attacks based on the ICMP...What are the effects of options ip.ping_throttle.drop_level 0 on the system environment? The ping throttling mechanism was introduced to mitigate risks from denial of service attacks based on the ICMP protocol. The existing ping throttling mechanism uses the value stored in the option ip.ping_throttle.drop_level option to obtain a threshold of packets to accept before dropping packets, in a one-second interval.
User sends reset packet after Negotiate Protocol Request from the storage system
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.
How to add larger capacity disks to a RAID group that contains smaller capacity disks
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.
What VAAI offloaded operations are supported by Data ONTAP?
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.
How to rename a volume SnapMirror destination
https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/How_to_rename_a_volume_SnapMirror_destination
Applies to Data ONTAP 7 and earlier Data ONTAP 8 7-Mode Description This article describes the procedure that should be followed to rename a volume SnapMirror destination.
How to completely remove SnapVault relationships (7-mode only)
https://kb.netapp.com/Legacy/ONTAP/7Mode/How_to_completely_remove_SnapVault_relationships_7_mode_only
Applies to Data ONTAP 8 7-Mode Data ONTAP 7 and earlier Description This article describes how completely remove SnapVault relationships (7-mode only)
SYSTEM CONFIGURATION WARNING reported by the storage system
https://kb.netapp.com/Legacy/ONTAP/7Mode/SYSTEM_CONFIGURATION_WARNING_reported_by_the_storage_system
Applies to Data ONTAP 7 and earlier Data ONTAP 8 7-Mode Issue Storage system reporting a warning or error with the system configuration System or cluster notification from the storage system AutoSuppo...Applies to Data ONTAP 7 and earlier Data ONTAP 8 7-Mode Issue Storage system reporting a warning or error with the system configuration System or cluster notification from the storage system AutoSupport message: SYSTEM CONFIGURATION WARNING
How to rename the hostname on a 7-mode filer without rebooting
https://kb.netapp.com/Legacy/ONTAP/7Mode/How_to_rename_the_hostname_on_a_7-mode__filer_without_rebooting
Applies to Data ONTAP 8 7-Mode Description Is it possible to change the hostname on a filer without rebooting? Also, if your /etc/rc and /etc/hosts file do not match, you may see the follow Alert risk...Applies to Data ONTAP 8 7-Mode Description Is it possible to change the hostname on a filer without rebooting? Also, if your /etc/rc and /etc/hosts file do not match, you may see the follow Alert risk in Active IQ Active hostname does not match the hostname entry in the RC file
Active IQ Wellness: Up to High Impact - This system is reporting a high average CPU utilization
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.
How to create a sync core in Data ONTAP 7-mode from a hanging/unresponsive storage system
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
How to view all SnapMirror/SnapVault relationships
https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/How_to_view_all_SnapMirror_SnapVault_relationships
Applies to ONTAP 9 Data ONTAP 8.2 7-Mode Description This article describes how to view all SnapMirror/SnapVault relationship types