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CIFS session is disconnected during data copy
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/CIFS_session_is_disconnected_during_data_copy
Applies to ONTAP 9 CIFS SMB2 Issue The customer was writing data to the shared volume using Windows copy/paste method When the data writing was about 40% complete, the CIFS session was interrupted, ca...Applies to ONTAP 9 CIFS SMB2 Issue The customer was writing data to the shared volume using Windows copy/paste method When the data writing was about 40% complete, the CIFS session was interrupted, causing the data copy to fail
High Latency on CIFS SVM with Home Folder
https://kb.netapp.com/on-prem/ontap/Perf/Perf-KBs/High_Latency_on_CIFS_SVM_with_Home_Folder
Applies to ONTAP 9 CIFS Home folder Citrix Profiles Issue Sudden High Latency after enabling Chrome Cache Mirroring A sudden increase in latency is observed in ActiveIQ UM or other performance monitor...Applies to ONTAP 9 CIFS Home folder Citrix Profiles Issue Sudden High Latency after enabling Chrome Cache Mirroring A sudden increase in latency is observed in ActiveIQ UM or other performance monitoring tools.
BlueXP Alert Machine account login to scanner account rejected
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/BlueXP_Alert_Machine_account_login_to_scanner_account_rejected
Applies to ONTAP 9 CIFS VSCAN Trellix Issue BlueXP shows alerts similar to BLUEXP alerts the following - For Vserver SVM1, the attempt to connect to the privileged ONTAP_ADMIN$ share by the client 10....Applies to ONTAP 9 CIFS VSCAN Trellix Issue BlueXP shows alerts similar to BLUEXP alerts the following - For Vserver SVM1, the attempt to connect to the privileged ONTAP_ADMIN$ share by the client 10.xxx.xxx.xxx is rejected because its logged-in user DOMAIN\SVM1$ is not configured in any of the Vserver active scanner pools EMS shows Nblade.vscanBadUserPrivAccess errors that correspond to the BlueXP alerts
What is the difference between the CIFS share property "showsnapshot" and volume option "-snapdir-access"?
https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/What_is_the_difference_between_the_CIFS_share_property_showsnapshot_and_volume_option_snapdir_access
CIFS share property showsnapshot: If the CIFS client simply tries to change directories to the snapshot directory, ONTAP will allow access even if the share property is not set, as long as the volume ...CIFS share property showsnapshot: If the CIFS client simply tries to change directories to the snapshot directory, ONTAP will allow access even if the share property is not set, as long as the volume option -snapdir-access is set to "true". When set to "true" (default), CIFS clients can access the snapshot directory. When set to "false", snapshot directory access is disabled. Note: this option also affects whether snapshots are available via the "Previous Versions" tab.
Users from trusted domains lose access to CIFS via short name (not FQDN)
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Users_from_trusted_domains_lose_access_to_CIFS_via_short_name_not_FQDN
Applies to ONTAP 9 CIFS Previously reachable domain controllers have recently become unreachable Issue If an SVM loses the ability to reach DCs, the ability of accounts from trusted domains to access ...Applies to ONTAP 9 CIFS Previously reachable domain controllers have recently become unreachable Issue If an SVM loses the ability to reach DCs, the ability of accounts from trusted domains to access CIFS can be impacted even if clients from the same domain are still able to access CIFS on the SVM This can be specific to just the short name of the server, access via the fully qualified domain name may be unaffected
OnCommand Unified Manager reporting alerts for vserver domain controller connection
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/OnCommand_Unified_Manager_reporting_alerts_for_vserver_domain_controller_connection
A powershell check script is retrieving Get-NcCifsDomainServer command output and filtering it to see if vserver domain controller connections are more than one The alerts from the powershell script a...A powershell check script is retrieving Get-NcCifsDomainServer command output and filtering it to see if vserver domain controller connections are more than one The alerts from the powershell script are forwarded to OnCommand unified manager generating lots of false positives cifs domain discovered-servers -vserver <vserver> command output shows the vserver have multiple domain controller connections There is no service interruption and all CIFS services are working and available on the cluster
Unable to access share or change permissions after DENY has been applied to EVERYONE
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Unable_to_access_share_or_change_permissions_after_DENY_has_been_applied_to_EVERYONE
Applies to ONTAP 9 Data ONTAP 7-Mode CIFS Windows Server Issue Unable to access share or change permissions after DENY has been applied to EVERYONE.
Unable to perform Cohesity NDMP backup from ONTAP System Manager
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Unable_to_perform_Cohesity_NDMP_backup_from_ONTAP_System_Manager
Applies to ONTAP 9 CIFS NDMP Cohesity Issue Login attempts to Cohesity are failing from ONTAP System Manager EMS log shows Mapping NETLOGON error c0000022 to NT_STATUS_NO_LOGON_SERVERS
CIFS sessions close due to idle timeout for Linux and other SMB clients
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/CIFS_sessions_close_due_to_idle_timeout_for_Linux_and_other_SMB_clients
CIFS sessions close due to idle timeout for Linux and other SMB clients. After upgrading to a fixed version of Bug 1274307, SMB clients may experience intermittent failures. Article provides steps to ...CIFS sessions close due to idle timeout for Linux and other SMB clients. After upgrading to a fixed version of Bug 1274307, SMB clients may experience intermittent failures. Article provides steps to increase the idle session timeout and a temporary workaround as well to resolve this issue.
Microsoft Security Advisory: CVE-2020-1206 SMB 3.1.1 Vulnerability, Is ONTAP vulnerable?
https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Microsoft_Security_Advisory__CVE_2020_1206_SMB_3_1_1_Vulnerability_Is_ONTAP_vulnerable
SMB 3.1.1 compression feature implementation in MS Windows ONTAP does not support the SMB 3.1.1 compression feature and therefore is not vulnerable. This article is in regards to this published Micros...SMB 3.1.1 compression feature implementation in MS Windows ONTAP does not support the SMB 3.1.1 compression feature and therefore is not vulnerable. This article is in regards to this published Microsoft Security Advisory: CVE-2020-1206 is a unique ID assigned to a Microsoft-specific vulnerability in their SMB v3.1.1 compression code. SMBleed: A New Critical Vulnerability Affects Windows SMB Protocol Microsoft Security Advisory: CVE-2020-0796 SMB 3.1.1 Vulnerability, Is ONTAP vulnerable?
After delete of SVM-DR relationship the destination SVM cannot be deleted due to CIFS server
https://kb.netapp.com/on-prem/ontap/DP/SnapMirror/SnapMirror-KBs/After_delete_of_SVM-DR_relationship_the_destination_SVM_cannot_be_deleted_due_to_CIFS_server
After decommissioning of a relationship, the destination vserver deletion fails with the following error: Reason: The Vserver is associated with Active Directory configured CIFS server "XXX" The delet...After decommissioning of a relationship, the destination vserver deletion fails with the following error: Reason: The Vserver is associated with Active Directory configured CIFS server "XXX" The deletion is partially complete. Delete the CIFS server using "cifs delete" and retry to complete the deletion. CIFS cannot be stopped or deleted or stopped: Error: command failed: This operation is not permitted on a Vserver that is configured as the destination for Vserver DR.