NAS-Issues
NAS-Issues
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Support for BlueXP Backup and Recovery
Learn how MetroCluster works, why it’s important to back up your data, and how BlueXP backup and recovery can help.
Learn how MetroCluster works, why it’s important to back up your data, and how BlueXP backup and recovery can help.
Recommended component releases
List of recommended component releases per your ONTAP OS version.
List of recommended component releases per your ONTAP OS version.
Benefits of managing ATTO bridges in-band
Items to consider on the benefits of using ATTO bridges in-band.
Items to consider on the benefits of using ATTO bridges in-band.
How to use the RcfFileGenerator for MetroCluster IP
A detailed guide on how to use the RcfFileGenerator for MetroCluster IP.
A detailed guide on how to use the RcfFileGenerator for MetroCluster IP.
Useful commands for MetroCluster FC and IP switches
The most commonly used commands for configuring, managing and troubleshooting MetroCluster switches.
The most commonly used commands for configuring, managing and troubleshooting MetroCluster switches.
Upgrade switch RCF's without wiping the switch"
Documentation guide to upgrade an RCF file on a Cisco IP switch.
Documentation guide to upgrade an RCF file on a Cisco IP switch.
Other Resources
- CONTAP-458820: ONTAP FlexCache origin volume experiences client I/O issues after cache volume deletion fails to clean up configurationFri, 20 Mar 2026
- CONTAP-466521: Public Report for CONTAP-466521Tue, 17 Mar 2026
- CONTAP-649468: ONTAP silently drops encrypted SMB2 CANCEL for pending CHANGE_NOTIFY without encryption enforcement, causing client hang(~60s)Thu, 12 Mar 2026
- CONTAP-650327: Allow NFS Active directory computers accounts password updateFri, 27 Feb 2026
- CONTAP-642963: NFS mounts hang indefinitely due to reclaim callbackFri, 20 Feb 2026
- CONTAP-640703: CIFS user connection issues due to SecD being stuck with RESULT_ERROR_SECD_IN_DISCOVERY errorsWed, 18 Feb 2026
- CONTAP-537578: Multichannel option is set to true on cifs server creationWed, 18 Feb 2026
- CONTAP-633747: RFE - Export policy hostname rule validation in case of DNS config errorTue, 10 Feb 2026
- CONTAP-473457: CIFS/SMB multichannel read/write Performance degradation observed when using FlexGroupsMon, 09 Feb 2026
- CONTAP-627619: Remove CIFS reference from Qtree export-policy warning when CIFS export policies are disabledWed, 04 Feb 2026
- CONTAP-613017: Controller disruption triggered by malformed packet handlingWed, 04 Feb 2026
- CONTAP-584040: Unexpected Node reboot with message thread (NwkThd_xx) on cpu <x> hung for 4001 milliseconds in process NwkThd_xxThu, 29 Jan 2026
- CONTAP-618659: Apply failed for Object: ldap_client_schema_byuuid Method: baseline. Reason: duplicate entryTue, 27 Jan 2026
- CONTAP-603281: FlexCache CIFS access may fail or experience slowness due to Remote Access Layer (RAL) cache thrashingTue, 20 Jan 2026
- CONTAP-615396: RFE: Domain User connecting via MMC should not be able to enumerate local users and groupsFri, 16 Jan 2026
- CONTAP-610350: The domain name in privileged user name "DOMAIN.A\user" cannot be a FQDNThu, 08 Jan 2026
- CONTAP-587109: LDAP SearchResEntry returns no entries on connection previously reporting RESULT_ERROR_LDAPSERVER_SERVER_DOWNThu, 25 Dec 2025
- CONTAP-586796: Flexcache cache locks are not getting freedFri, 19 Dec 2025
- CONTAP-491023: Allow for READDIRs against an Origin directory that is being updated via FlexCache write-back mechanismWed, 17 Dec 2025
- CONTAP-440125: Unexpected Node reboot with message thread (NwkThd_XX) on cpu <X> hung for 4001 millisecondsTue, 16 Dec 2025
- CONTAP-587109: LDAP SearchResEntry returns no entries on connection previously reporting RESULT_ERROR_LDAPSERVER_SERVER_DOWNSun, 22 Mar 2026
- CONTAP-584040: Unexpected Node reboot with message thread (NwkThd_xx) on cpu <x> hung for 4001 milliseconds in process NwkThd_xxSun, 22 Mar 2026
- CONTAP-578764: Page fault during Nfsv3 ReadDirPlus responseSun, 22 Mar 2026
- CONTAP-573120: RFE: Add REST-API endpoint attributes 'v3-hide-snapshot' for 'nfs-service-modify' callSun, 22 Mar 2026
- CONTAP-532289: ONTAP cluster node reboots unexpectedly due to invalid memory access during antivirus scan decisionSun, 22 Mar 2026
- CONTAP-71119: Copying a read-only file to a Flexcache volume results in a permission denied but the file is still created via SMB protocol.Sat, 21 Mar 2026
- CONTAP-91472: REST API GET /protocols/locks might not return any recordSat, 21 Mar 2026
- CONTAP-90989: Modebits not inherited when creating a new file or directory via CIFSSat, 21 Mar 2026
- CONTAP-594735: RFE: Windows Server 2025 Witness Client failing to register Witness Server for notification Name with SMB for SQL ClusterSat, 21 Mar 2026
- CONTAP-458820: ONTAP FlexCache origin volume experiences client I/O issues after cache volume deletion fails to clean up configurationFri, 20 Mar 2026
- CONTAP-78130: RFE: Add EMS for slowness when multiple users access a file over CIFS with locksFri, 20 Mar 2026
- CONTAP-120160: NFS v4.2-xattrs field getting flipped after upgradesFri, 20 Mar 2026
- CONTAP-65553: Volume delete fail on SVM DR claiming Flexvol is a FlexCache origin volumeFri, 20 Mar 2026
- CONTAP-113750: REST Support for WorkGroup Mode in CIFS serverFri, 20 Mar 2026
- CONTAP-114400: Adding Support for NFS4.1 in FpolicyFri, 20 Mar 2026
- CONTAP-88948: SecD becoming unresponsive (LDAPS enabled)Fri, 20 Mar 2026
- CONTAP-124560: Mount to ONTAP via NFS over RDMA may fail with "Connection refused"Fri, 20 Mar 2026
- CONTAP-618659: Apply failed for Object: ldap_client_schema_byuuid Method: baseline. Reason: duplicate entryFri, 20 Mar 2026
- CONTAP-615396: RFE: Domain User connecting via MMC should not be able to enumerate local users and groupsFri, 20 Mar 2026
- CONTAP-586796: Flexcache cache locks are not getting freedFri, 20 Mar 2026
NAS Public Report
Highest rated
(rating)- CONTAP-120160: NFS v4.2-xattrs field getting flipped after upgrades
- NFSv4.2 clients report "invalid argument" after upgrading ONTAP from a version affected by CONTAP-120160
- CONTAP-318796: Occasionally the SID Lookup via LSAR_LOOKUP_SIDS2 is failing due to error:NT_STATUS_NETWORK_SESSION_EXPIRED(0xc000035c)
- CONTAP-250153: RFE to completely bypass name string resolution in NFSv4
- CONTAP-413023: Accessing an NFS mount fails due to authentication error
- CONTAP-387859: SETINFO metadata modification errouneously evicts blocks with write-back
- CONTAP-347583: CIFS server creation using Windows 2025 Domain Controller failing with KRB5KRB_AP_ERR_MODIFIED error
- CONTAP-436415: Add a feature to dynamically reduce the size of a flexcache volume
- CONTAP-307675: ANDU : Received PANIC packet from partner, receiving message is (CLAM has determined this node is out of quorum) in SK process mcc_ic_kill_pkt_handler
- CONTAP-440806: Volume move of persistent store volume breaks fpolicy or causes log spam
- CONTAP-394279: Request to automatically update Share ACL when changes are made in AD
- CONTAP-363717: ONTAP EMS reports cifs.replay.failure for cifs-nblade module.
- CONTAP-405266: Assertion failure while unlock NFS4 owner
- CONTAP-400990: [RFE] Increase characters sent via ONTAP cli for Native FPolicy extensions
- CONTAP-407325: [RFE] increase logging level for Nblade.smbSignatureMismatch:error
Recently updated
(date updated)- CONTAP-587109: LDAP SearchResEntry returns no entries on connection previously reporting RESULT_ERROR_LDAPSERVER_SERVER_DOWN
- CONTAP-584040: Unexpected Node reboot with message thread (NwkThd_xx) on cpu <x> hung for 4001 milliseconds in process NwkThd_xx
- CONTAP-578764: Page fault during Nfsv3 ReadDirPlus response
- CONTAP-573120: RFE: Add REST-API endpoint attributes 'v3-hide-snapshot' for 'nfs-service-modify' call
- CONTAP-532289: ONTAP cluster node reboots unexpectedly due to invalid memory access during antivirus scan decision
- CONTAP-71119: Copying a read-only file to a Flexcache volume results in a permission denied but the file is still created via SMB protocol.
- CONTAP-91472: REST API GET /protocols/locks might not return any record
- CONTAP-90989: Modebits not inherited when creating a new file or directory via CIFS
- CONTAP-594735: RFE: Windows Server 2025 Witness Client failing to register Witness Server for notification Name with SMB for SQL Cluster
- CONTAP-458820: ONTAP FlexCache origin volume experiences client I/O issues after cache volume deletion fails to clean up configuration
- CONTAP-78130: RFE: Add EMS for slowness when multiple users access a file over CIFS with locks
- CONTAP-120160: NFS v4.2-xattrs field getting flipped after upgrades
- CONTAP-65553: Volume delete fail on SVM DR claiming Flexvol is a FlexCache origin volume
- CONTAP-113750: REST Support for WorkGroup Mode in CIFS server
- CONTAP-114400: Adding Support for NFS4.1 in Fpolicy
Recently added
(date created)- CONTAP-458820: ONTAP FlexCache origin volume experiences client I/O issues after cache volume deletion fails to clean up configuration
- CONTAP-466521: Public Report for CONTAP-466521
- CONTAP-649468: ONTAP silently drops encrypted SMB2 CANCEL for pending CHANGE_NOTIFY without encryption enforcement, causing client hang(~60s)
- CONTAP-650327: Allow NFS Active directory computers accounts password update
- CONTAP-642963: NFS mounts hang indefinitely due to reclaim callback
- CONTAP-640703: CIFS user connection issues due to SecD being stuck with RESULT_ERROR_SECD_IN_DISCOVERY errors
- CONTAP-537578: Multichannel option is set to true on cifs server creation
- CONTAP-633747: RFE - Export policy hostname rule validation in case of DNS config error
- CONTAP-473457: CIFS/SMB multichannel read/write Performance degradation observed when using FlexGroups
- CONTAP-627619: Remove CIFS reference from Qtree export-policy warning when CIFS export policies are disabled
- CONTAP-613017: Controller disruption triggered by malformed packet handling
- CONTAP-584040: Unexpected Node reboot with message thread (NwkThd_xx) on cpu <x> hung for 4001 milliseconds in process NwkThd_xx
- CONTAP-618659: Apply failed for Object: ldap_client_schema_byuuid Method: baseline. Reason: duplicate entry
- CONTAP-603281: FlexCache CIFS access may fail or experience slowness due to Remote Access Layer (RAL) cache thrashing
- CONTAP-615396: RFE: Domain User connecting via MMC should not be able to enumerate local users and groups