Dell EMC Unity XT 880

Impossible d’exécuter setfacl sur l’exportation Unity NFSv4.

La LUN ou le système de fichiers se déconnecte temporairement, mais se reconnecte de lui-même.

Lorsque la configuration LDAP du serveur NAS Unity passe de la configuration automatique à la configuration manuelle et qu’un troisième serveur LDAP est ajouté. Le fichier ldap.conf peut être remplacé par un fichier ldap.conf généré automatiquement ou par défaut.

Customer configured forest level LDAP authentication on Unity for GUI management. The LDAP connection was verified OK but customer was unable to add role mapping for LDAP users.

Asynchronous replication session was created, yet no data is being transferred.

Cet article décrit une solution possible au problème lorsque la commande « svc_udoctor » ne fonctionne pas correctement.

HP LaserJet Multi-Function Printers (MFP) may fail to access network folders on Unity systems following a Unity upgrade to 5.2 code

When a system drive fails in a traditional pool, a hotspare is used to copy customer data luns. Once the system drive is replaced, the system drive does not become available as a hotspare. This could lead to a hotspare rule failure as there is one less hotspare available.

Information on whether or not Dell Unity products are vulnerable to CVE-2021-42287.

ls command hung on RHEL 8.4 client when mounting Unity NFS export via NFSv4.

Here are the steps and precautions that are necessary for removing an existing LUN from a Consistency Group. (User Correctable)

Users from trusted domain can't access the Unity NAS server with selective authentication being enabled in the domain trust configuration. When selective authentication is enabled, users from trusted domain can only access the NAS server if they are granted with special permission.

Explain storageoffline in-time DC generated after upgrade to 5.1 or above.

When configuring NDMP backups on Unity systems, customers might have a situation where they must use different TCP data port ranges for NDMP data/mover listening.

This article discusses the best practices to follow to ensure that Consistency Groups (CG) with replication configured are handled appropriately. (Dell Correctable)

Failed to add NTP server on Unity, Error: Cannot create NTP servers. At least one of the specified NTP servers is not working.

NAS servers cannot connect to Network Time Protocol (NTP) servers using IP addresses assigned to the NAS servers.

Unable to create traditional pool from Unity user interface OR RAID 5 or 10 not available when creating pool from Unity user interface. (User Correctable)

The replication mode might get changed from sync to async after upgrading to code 5.2. This leads to replication connection validation failure and impact replication-related operations like pause/resume/failover/failback.

During file system creations or file system mounts, there is a chance of an unexpected Storage Processor (SP) reboot or file system going offline if Tree Quotas are enabled. Sometimes, a storage processor has remained in Service Mode after the unexpected reboot.

Unable to restore a replicated LUN from a snapshot created prior to LUN expansion. Error: 0x716f100a

This panic condition is due to a regression in Unity OE 5.1 related to Secure NFS in a Kerberos environment with a DNS server that is selectively responding or otherwise problematic. It can panic if a name service lookup is being performed and the name service is unreachable, and the lookup name does not exist in cache. This issue does not impact Unity OE 5.0.x releases.

This KB describes how to address the situation where there is information that has not been translated even though a language pack has been applied.

After upgrade to 5.1.x a Replication Full Sync is started unexpectedly.

In Unity OS Release: 5.2.0.0.5.173 Users might have issues connecting to CIFS/SMB Shares with Kerberos token greater than 16k.

This article explains the symptoms and resolution of several drives appearing as faulted in a newly installed array (this could also happen if there is cross cabling after Unity has been installed)

Some third-party Vulnerability scanning software might report weak SSH key exchange algorithm on Unity running code 5.1.X but the reported weak algorithms are disabled on Unity.

While creating the Async/Sync Replication Interface an error is encountered "The specified Network interface could not be created."

After initial copy and incremental copy was successfully run on the emcopy hosts, while trying to run the sharedup utility to copy the security descriptors and all security permissions related from the source to the destination shares, an error occurred in the log file generated from sharedup

This Dell Knowledgebase Article provides details when upgrading a system that has an advanced replication topology.