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-544388: Fpolicy Access Denied SMB Events are only supported with OPEN operationsWed, 17 Sep 2025
- CONTAP-500272: NFSv4.0 returns BAD_SEQID error leading to IO ErrorTue, 16 Sep 2025
- CONTAP-526929: LsarOpenPolicy2 RPC Fails with STATUS_ACCESS_DENIED on ONTAP SMB SharesThu, 11 Sep 2025
- CONTAP-537927: s4u2self for the NULL userWed, 10 Sep 2025
- CONTAP-518068: Flexgroup utilizing CA Shares may see impact during volume move activity with Lock PersistenceMon, 08 Sep 2025
- CONTAP-525915: FlexCache volume inaccessible after removing unrelated originThu, 04 Sep 2025
- CONTAP-506156: SVM DR Does not replicate Share Access Control Permissions of newly created Qtree sharesWed, 13 Aug 2025
- CONTAP-498347: Disruptions on PCI bus 0,0,0 on systems using NFSv4.0Wed, 13 Aug 2025
- CONTAP-437640: NFS clients configured to use a large TCP slot size may cause a controller disruption in certain situations.Tue, 12 Aug 2025
- CONTAP-242621: FlexCache hang on the cache volumeMon, 04 Aug 2025
- CONTAP-510949: FlexCache latency on cache due to soft deadlock.Mon, 04 Aug 2025
- CONTAP-481468: Remove operation receives I/O error on a FlexCache origin when the cache is fullFri, 01 Aug 2025
- CONTAP-415175: mcached panic due to memory exhaustionTue, 29 Jul 2025
- CONTAP-349486: Flexcache volume inaccessible via NFS after rebootWed, 23 Jul 2025
- CONTAP-428068: Support for VAAI-NAS UNAMP with NFSv3 featureTue, 22 Jul 2025
- CAVSHIM-272: ONTAP Antivirus Connector log exceeds file size and is unable to rotate logsFri, 18 Jul 2025
- CONTAP-494868: Storage controller disruption due to a race condition between "wafl_close_unlink_load_origin" and "wafl_remote_retrieve"Thu, 17 Jul 2025
- CONTAP-494881: RFE - Add "vserver cifs users-and-groups local-group" for use with MAVWed, 16 Jul 2025
- CONTAP-360101: CONTAP-360101 / Leak in while allocating the memory in Watch Remote Parent Cache EntryTue, 15 Jul 2025
- CONTAP-451215: High latency on Flexcache cache volumeFri, 11 Jul 2025
- CONTAP-544388: Fpolicy Access Denied SMB Events are only supported with OPEN operationsWed, 17 Sep 2025
- CONTAP-518068: Flexgroup utilizing CA Shares may see impact during volume move activity with Lock PersistenceWed, 17 Sep 2025
- CONTAP-335321: NFS access hung when adding an export policy to a qtreeWed, 17 Sep 2025
- CONTAP-500272: NFSv4.0 returns BAD_SEQID error leading to IO ErrorWed, 17 Sep 2025
- CONTAP-141955: Poor performance because ONTAP does not implement SMB directory leasing and slow Access Based EnumerationMon, 15 Sep 2025
- CONTAP-347583: cifs server create is failing with KRB5KRB_AP_ERR_MODIFIED against a Windows 2025 Domain ControllerMon, 15 Sep 2025
- CONTAP-525915: FlexCache volume inaccessible after removing unrelated originSat, 13 Sep 2025
- CONTAP-498347: Disruptions on PCI bus 0,0,0 on systems using NFSv4.0Sat, 13 Sep 2025
- CONTAP-238419: An administratively offline FlexCache cache volume causes latency or unresponsivenessSat, 13 Sep 2025
- CONTAP-423279: Incorrect EMS FlexCache Origin Full AlertSat, 13 Sep 2025
- CONTAP-378775: Duplicate NFSv4.x ACE entries are added when try to add same ACE multiple timesSat, 13 Sep 2025
- CONTAP-65553: Volume delete fail on SVM DR claiming Flexvol is a FlexCache origin volumeSat, 13 Sep 2025
- 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, 13 Sep 2025
- CONTAP-71492: File open request from SMB clients can sometimes cause problemSat, 13 Sep 2025
- CONTAP-76531: MGWD may restart unexpectedly due to mutliple parallel updates via RESTSat, 13 Sep 2025
- CONTAP-78869: Failure of SnapMirror resync for the CIFS Domain Name Mapping Search TableSat, 13 Sep 2025
- CONTAP-81257: wafl.watch.cache.limit.near EMS ERR seenSat, 13 Sep 2025
- CONTAP-81494: BGP disconnects due to CSM timeout of 2 minutesSat, 13 Sep 2025
- CONTAP-82804: Renaming a file may fail with access denied when backup semantics is enabledSat, 13 Sep 2025
- CONTAP-85379: Character Mapping Update Failure in SVM-DRSat, 13 Sep 2025
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-250153: RFE to completely bypass name string resolution in NFSv4
- CONTAP-387859: SETINFO metadata modification errouneously evicts blocks with write-back
- CONTAP-318796: Occasionally the SID Lookup via LSAR_LOOKUP_SIDS2 is failing due to error:NT_STATUS_NETWORK_SESSION_EXPIRED(0xc000035c)
- CONTAP-413023: Accessing an NFS mount fails due to authentication error
- CONTAP-347583: cifs server create is failing with KRB5KRB_AP_ERR_MODIFIED against a Windows 2025 Domain Controller
- CONTAP-335321: NFS access hung when adding an export policy to a qtree
- CONTAP-285963: ONTAP cluster node can panic when NFSv4.1 client sends parallel OPEN & CLOSE requests for FlexCache volume for same open owner.
- CONTAP-341968: Unexpected reboot of an node
- CONTAP-200342: Cifs outage due to DiskFile buildup
- CONTAP-31554: ONTAP CIFS server-side copy support (non-ODX)
- CONTAP-335193: File level security permissions are not being applied as intended using REST API
- CONTAP-278575: When deleting or writing a file, the event is recorded on the FlexCache SVM instead of the Origin SVM
- CONTAP-335077: RFE SMB Witness support Kerberos authentication
Recently updated
(date updated)- CONTAP-544388: Fpolicy Access Denied SMB Events are only supported with OPEN operations
- CONTAP-518068: Flexgroup utilizing CA Shares may see impact during volume move activity with Lock Persistence
- CONTAP-335321: NFS access hung when adding an export policy to a qtree
- CONTAP-500272: NFSv4.0 returns BAD_SEQID error leading to IO Error
- CONTAP-141955: Poor performance because ONTAP does not implement SMB directory leasing and slow Access Based Enumeration
- CONTAP-347583: cifs server create is failing with KRB5KRB_AP_ERR_MODIFIED against a Windows 2025 Domain Controller
- CONTAP-525915: FlexCache volume inaccessible after removing unrelated origin
- CONTAP-498347: Disruptions on PCI bus 0,0,0 on systems using NFSv4.0
- CONTAP-238419: An administratively offline FlexCache cache volume causes latency or unresponsiveness
- CONTAP-423279: Incorrect EMS FlexCache Origin Full Alert
- CONTAP-378775: Duplicate NFSv4.x ACE entries are added when try to add same ACE multiple times
- CONTAP-65553: Volume delete fail on SVM DR claiming Flexvol is a FlexCache origin volume
- 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-71492: File open request from SMB clients can sometimes cause problem
- CONTAP-76531: MGWD may restart unexpectedly due to mutliple parallel updates via REST
Recently added
(date created)- CONTAP-544388: Fpolicy Access Denied SMB Events are only supported with OPEN operations
- CONTAP-500272: NFSv4.0 returns BAD_SEQID error leading to IO Error
- CONTAP-526929: LsarOpenPolicy2 RPC Fails with STATUS_ACCESS_DENIED on ONTAP SMB Shares
- CONTAP-537927: s4u2self for the NULL user
- CONTAP-518068: Flexgroup utilizing CA Shares may see impact during volume move activity with Lock Persistence
- CONTAP-525915: FlexCache volume inaccessible after removing unrelated origin
- CONTAP-506156: SVM DR Does not replicate Share Access Control Permissions of newly created Qtree shares
- CONTAP-498347: Disruptions on PCI bus 0,0,0 on systems using NFSv4.0
- CONTAP-437640: NFS clients configured to use a large TCP slot size may cause a controller disruption in certain situations.
- CONTAP-242621: FlexCache hang on the cache volume
- CONTAP-510949: FlexCache latency on cache due to soft deadlock.
- CONTAP-481468: Remove operation receives I/O error on a FlexCache origin when the cache is full
- CONTAP-415175: mcached panic due to memory exhaustion
- CONTAP-349486: Flexcache volume inaccessible via NFS after reboot
- CONTAP-428068: Support for VAAI-NAS UNAMP with NFSv3 feature