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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.
Two ports on a 4-port SAS HBA card are not displaying in autosupports or sysconfig -a output for one of the filers in a HA paired system
https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Two_ports_on_a_4-port_SAS_HBA_card_are_not_displaying_in_autosupports_or_sysconfig_-a_output_for_one_of_the_filers_in_a_HA_paired_system
The sysconfig -a command shows only two of the four ports available on card, similar to the following sysconfig -a output: QSFP Part Number: 112-00176+A0 QSFP Type: Passive Copper 0.5m ID:01 QSFP Seri...The sysconfig -a command shows only two of the four ports available on card, similar to the following sysconfig -a output: QSFP Part Number: 112-00176+A0 QSFP Type: Passive Copper 0.5m ID:01 QSFP Serial Number: 128720476 (Lists disk drives on this adapter) QSFP Part Number: not available QSFP Type: not available QSFP Serial Number: not available Thus the output is not showing ports 4c and 4d on this storage system; however, the partner storage system displays all four ports accurately.
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.
SnapMirror aborts with "Transfer Failed" error on source due to lack of space on destination
https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/SnapMirror_aborts_with_Transfer_Failed_error_on_source_due_to_lack_of_space_on_destination
[?] Wed Feb 18 00:28:04 EST [evrs-ntap02: wafl_exempt02: wafl.vvol.xfer.nospacedestErr:error]: Transfer to volume 'vmware_edrsdr' failed because the containing aggregate, 'aggr2', is out of space. [?]...[?] Wed Feb 18 00:28:04 EST [evrs-ntap02: wafl_exempt02: wafl.vvol.xfer.nospacedestErr:error]: Transfer to volume 'vmware_edrsdr' failed because the containing aggregate, 'aggr2', is out of space. [?] Wed Feb 18 00:42:06 EST [evrs-ntap02: worker_thread_483: replication.dst.err:error]: SnapMirror: destination transfer from ev!rs-ntap01:vmware_edrs to vmware_edrsdr : replication transfer failed to complete
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 perform a non-disruptive change between Active-Passive (RDAC) and ALUA host types on E-Series arrays connected to ONTAP 7-Mode systems
https://kb.netapp.com/Legacy/ONTAP/7Mode/How_to_perform_a_non_disruptive_change_between_Active_Passive_RDAC
The following procedure for changing the E-Series host type from RDAC to ALUA must be completed prior to upgrading to 8.25 and later. This article describes a non-disruptive procedure to convert the h...The following procedure for changing the E-Series host type from RDAC to ALUA must be completed prior to upgrading to 8.25 and later. This article describes a non-disruptive procedure to convert the host type on the NetApp E-Series array connected to Data ONTAP systems. You can use this non-disruptive procedure to perform the following for the E-Series arrays connected to the Data ONTAP system:
Disk Sanitization info for 7-mode
https://kb.netapp.com/Legacy/ONTAP/7Mode/Disk_Sanitization_info_for_7-mode
What is the impact of entering a disk sanitization license on a metro cluster with many disks connected? The Disk sanitization itself does not have a notable impact, because the format is performed by...What is the impact of entering a disk sanitization license on a metro cluster with many disks connected? The Disk sanitization itself does not have a notable impact, because the format is performed by the disk, and the writes are done with a command that writes large chunks (10 MB) at one time, the same as zeroing. Can both the nodes on a metro cluster use the same disk sanitization license? Initialize a disk from maintenance mode without releasing the disk after sanitizing the disk?
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 repurpose a Data ONTAP 8.1.x or later 7-Mode node to ONTAP 9
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
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
What is the explanation of the cifs.restrict_anonymous option and its effects on null user access?
https://kb.netapp.com/Legacy/ONTAP/7Mode/What_is_the_explanation_of_the_cifs_restrict_anonymous_option_and_its_effects_on_null_user_access
When the option is set to off, a null user connection to the filer is allowed and the enumeration of shares presented on your filer will succeed. Turning the option to onwill allow a null user to map ...When the option is set to off, a null user connection to the filer is allowed and the enumeration of shares presented on your filer will succeed. Turning the option to onwill allow a null user to map to the filer but will deny the enumeration of shares. When attempting to restrict the abilities of the anonymous user, you can set a new option on the filer to three different settings depending on your needs.